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修士(理学)(東京大学)
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博士(理学)(東京大学)
Details of the Researcher
Research History 20
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2025/05 - PresentNational Institute for Materials Science Research Center for Materials Nanoarchitechtonics Chief Invited Researcher
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2024/04 - PresentTohoku University Research Center for Neutrino Science Associate Professor
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2022/04 - PresentTohoku University Advanced Institute for Materials Research Associate Professor
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2020/08 - PresentTohoku University Tohoku Quantum Alliance Co-director
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2019/12 - PresentOrganization for Advanced Studies Associate Professor
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2019/04 - PresentCenter for Science and Innovation in Spintronics, Tohoku University Associate Professor
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2018/04 - PresentDepartment of Electrical Engineering, School of Engineering, Tohoku University Associate Professor
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2018/02 - PresentResearch Institute of Electrical Communication, Tohoku University (Quantum Devices (Otsuka Group), Information Devices Division) Associate Professor
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2018/02 - PresentRIKEN (Center for Emergent Matter Science, Quantum Functional System Research Group) Visiting Researcher
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2018/04 - 2022/03Center for Spintronics Research Network, Tohoku University Associate Professor
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2018/02 - 2022/03Leading Initiative for Excellent Young Researchers, MEXT-Japan
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2016/10 - 2020/03JST, PRESTO Project Researcher
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2013/04 - 2020/03Department of Applied Physics, University of Tokyo (Tarucha-Yamamoto Lab) Visiting Researcher
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2016/01 - 2018/01RIKEN (Center for Emergent Matter Science, Quantum Functional System Research Group) Research Scientist
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2013/04 - 2015/12RIKEN (Quantum Functional System Research Group, Center for Emergent Matter Science) Postdoctoral Researcher
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2012/09 - 2013/03RIKEN (Emergent Quantum Function Research Team, Functional Emergent-matter Research Group, Emergent Materials Department, Advanced Science Institute) Visiting Researcher
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2010/04 - 2013/03Department of Applied Physics, University of Tokyo (Tarucha-Oiwa Lab) Project Researcher
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2012/10 - 2013/02IARPA Exchange Program (Center for Quantum Devices, Niels Bohr Institute, University of Copenhagen)
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2007/04 - 2010/03the Japan Society for the Promotion of Science Research Fellow (DC)
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2006/10 - 2007/03Institute for Solid State Physics, University of Tokyo (Katsumoto Lab) Technical Assistant
Education 3
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University of Tokyo (ISSP Katsumoto Lab) Ph.D. course, Department of Physics
2007/04 - 2010/03
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University of Tokyo (ISSP Katsumoto Lab) Master course, Department of Physics
2005/04 - 2007/03
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University of Tokyo Department of Physics
2003/04 - 2005/03
Professional Memberships 1
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THE PHYSICAL SOCIETY OF JAPAN
Research Interests 12
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Mesoscopic system
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Semiconductor
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Quantum computer
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Quantum bit
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Spintronics
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Quantum Device
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Quantum Wire
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Quantum Dot
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Semiconductor Physics
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Low Temperature Physics
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Condensed Matter Physics
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量子情報処理プロジェクト
Research Areas 3
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Natural sciences / Semiconductors, optical and atomic physics /
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Nanotechnology/Materials / Nano/micro-systems /
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Nanotechnology/Materials / Nanomaterials /
Awards 12
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Distinguished Researcher
2023/04 Tohoku University
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Distinguished Researcher
2020/07 Tohoku University
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Intelligent Cosmos Academic Foundation Research Encouraging Award
2020/05 Intelligent Cosmos Academic Foundation
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RIEC Research Exchange Meeting Good Presentation Award
2018/09 RIEC, Tohoku University
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The Young Scientists’ Prize, The Commendation for Science and Technology by the Minister of Education, Culture, Sports, Science and Technology
2018/04 Minister of Education, Culture, Sports, Science and Technology
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Yazaki Memorial Foundation for Science and Technology Research Encouraging Award
2018/03 Yazaki Memorial Foundation
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Foundation Advanced Technology Institute Research Encouraging Award
2017/05 Foundation Advanced Technology Institute
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RIKEN CEMS Award
2017/04 CEMS, RIKEN
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Young Scientist Award of the Physical Society of Japan
2017/03 the Physical Society of Japan
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RIKEN Researcher Incentive Award
2017/03 RIKEN
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NF Foundation R&D Encouragement Award
2014/11 NF Foundation
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Research Encouraging Prize, School of Science, University of Tokyo
2010/03 School of Science, University of Tokyo
Papers 76
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RFSoC-based radio-frequency reflectometry in gate-defined bilayer graphene quantum devices Peer-reviewed
Motoya Shinozaki, Tomoya Johmen, Aruto Hosaka, Takumi Seo, Shunsuke Yashima, Akitomi Shirachi, Kosuke Noro, Shoichi Sato, Takashi Kumasaka, Tsuyoshi Yoshida, Tomohiro Otsuka
Applied Physics Express 18 (7) 075001-1-075001-5 2025/07/09
DOI: 10.35848/1882-0786/ade6c2
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Charge-state estimation in quantum dots using a Bayesian approach Peer-reviewed
Motoya Shinozaki, Yui Muto, Takahito Kitada, Tomohiro Otsuka
Physical Review Applied 23 034078 2025/03/26
DOI: 10.1103/PhysRevApplied.23.034078
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Lattice-guided growth of dense arrays of aligned transition metal dichalcogenide nanoribbons with high catalytic reactivity Peer-reviewed
Zongpeng Ma, Pablo Solís-Fernández, Kaito Hirata, Yung-Chang Lin, Keisuke Shinokita, Mina Maruyama, Kota Honda, Tatsuki Kato, Aika Uchida, Hiroto Ogura, Tomohiro Otsuka, Masahiro Hara, Kazunari Matsuda, Kazu Suenaga, Susumu Okada, Toshiaki Kato, Yasufumi Takahashi, Hiroki Ago
Science Advances 11 (2) eadr8046 2025/01/08
Publisher: American Association for the Advancement of Science (AAAS)eISSN: 2375-2548
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Dynamics of quantum cellular automata electron transition in triple quantum dots Peer-reviewed
Takumi Aizawa, Motoya Shinozaki, Yoshihiro Fujiwara, Takeshi Kumasaka, Wataru Izumida, Arne Ludwig, Andreas D. Wieck, Tomohiro Otsuka
Physical Review B 110 235421 2024/12/18
DOI: 10.1103/PhysRevB.110.235421
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Probing electron trapping by current collapse in GaN/AlGaN FETs utilizing quantum transport characteristics Peer-reviewed
Takaya Abe, Motoya Shinozaki, Kazuma Matsumura, Takumi Aizawa, Takeshi Kumasaka, Norikazu Ito, Taketoshi Tanaka, Ken Nakahara, Tomohiro Otsuka
Applied Physics Letters 125 253501 2024/12/16
DOI: 10.1063/5.0232463
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Parity-independent Kondo effect of correlated electrons in electrostatically defined ZnO quantum dots Peer-reviewed
Kosuke Noro, Yusuke Kozuka, Kazuma Matsumura, Takeshi Kumasaka, Yoshihiro Fujiwara, Atsushi Tsukazaki, Masashi Kawasaki, Tomohiro Otsuka
Nature Communications 15 9556 2024/11/07
DOI: 10.1038/s41467-024-53890-2
eISSN: 2041-1723
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Surface Gate-Defined Quantum Dots in MoS2 with Bi Contacts Peer-reviewed
Riku Tataka, Alka Sharma, Motoya Shinozaki, Tomoya Johmen, Takeshi Kumasaka, Yong P. Chen, Tomohiro Otsuka
Journal of the Physical Society of Japan 93 (9) 094601-1-094601-5 2024/09/15
Publisher: Physical Society of JapanISSN: 0031-9015
eISSN: 1347-4073
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Microwave-dependent quantum transport characteristics in near pinched-off GaN/AlGaN field-effect transistors Peer-reviewed
Motoya Shinozaki, Takaya Abe, Kazuma Matsumura, Takumi Aizawa, Takeshi Kumasaka, Tomohiro Otsuka
Physical Review B 110 035305-1-035305-7 2024/07/17
Publisher: American Physical Society (APS)DOI: 10.1103/physrevb.110.035305
ISSN: 2469-9950
eISSN: 2469-9969
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Visual explanations of machine learning model estimating charge states in quantum dots Peer-reviewed
Yui Muto, Takumi Nakaso, Motoya Shinozaki, Takumi Aizawa, Takahito Kitada, Takashi Nakajima, Matthieu R. Delbecq, Jun Yoneda, Kenta Takeda, Akito Noiri, Arne Ludwig, Andreas D. Wieck, Seigo Tarucha, Atsunori Kanemura, Motoki Shiga, Tomohiro Otsuka
APL Machine Learning 2 026110-1-026110-7 2024/04/15
Publisher: AIP PublishingDOI: 10.1063/5.0193621
eISSN: 2770-9019
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Wide dynamic range charge sensor operation by high-speed feedback control of radio-frequency reflectometry Peer-reviewed
Yoshihiro Fujiwara, Motoya Shinozaki, Kazuma Matsumura, Kosuke Noro, Riku Tataka, Shoichi Sato, Takeshi Kumasaka, Tomohiro Otsuka
Applied Physics Letters 123 (21) 213502-1-213502-7 2023/11/20
Publisher: AIP PublishingDOI: 10.1063/5.0167212
ISSN: 0003-6951
eISSN: 1077-3118
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Single PbS colloidal quantum dot transistors Peer-reviewed
Kenji Shibata, Masaki Yoshida, Kazuhiko Hirakawa, Tomohiro Otsuka, Satria Zulkarnaen Bisri, Yoshihiro Iwasa
Nature Communications 14 7486-1-7486-8 2023/11/07
DOI: 10.1038/s41467-023-43343-7
eISSN: 2041-1723
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Radio-Frequency Reflectometry in Bilayer Graphene Devices Utilizing Microscale Graphite Back-Gates Peer-reviewed
Tomoya Johmen, Motoya Shinozaki, Yoshihiro Fujiwara, Takumi Aizawa, Tomohiro Otsuka
Physical Review Applied 20 (1) 2023/07/17
Publisher: American Physical Society (APS)DOI: 10.1103/physrevapplied.20.014035
eISSN: 2331-7019
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Channel length dependence of the formation of quantum dots in GaN/AlGaN FETs Peer-reviewed
Kazuma Matsumura, Takaya Abe, Takahito Kitada, Takeshi Kumasaka, Norikazu Ito, Taketoshi Tanaka, Ken Nakahara, Tomohiro Otsuka
Applied Physics Express 16 (7) 075003-075003 2023/07/01
Publisher: IOP PublishingDOI: 10.35848/1882-0786/ace415
ISSN: 1882-0778
eISSN: 1882-0786
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Nonlinear conductance in nanoscale CoFeB/MgO magnetic tunnel junctions with perpendicular easy axis Peer-reviewed
Motoya Shinozaki, Junta Igarashi, Shuichi Iwakiri, Takahito Kitada, Keisuke Hayakawa, Butsurin Jinnai, Tomohiro Otsuka, Shunsuke Fukami, Kensuke Kobayashi, Hideo Ohno
Physical Review B 2023/03/30
DOI: 10.1103/PhysRevB.107.094436
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Scalable fabrication of graphene nanoribbon quantum dot devices with stable orbital-level spacing
Toshiaki Kato, Takahito Kitada, Mizuki Seo, Wakana Okita, Naofumi Sato, Motoya Shinozaki, Takaya Abe, Takeshi Kumasaka, Takumi Aizawa, Yui Muto, Toshiro Kaneko, Tomohiro Otsuka
Communications Materials 3 (1) 2022/12/22
Publisher: Springer Science and Business Media LLCDOI: 10.1038/s43246-022-00326-3
eISSN: 2662-4443
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Probabilistic teleportation of a quantum dot spin qubit Peer-reviewed
Y. Kojima, T. Nakajima, A. Noiri, J. Yoneda, T. Otsuka, K. Takeda, S. Li, S. D. Bartlett, A. Ludwig, A. D. Wieck, S. Tarucha
npj Quantum Information 7 (1) 2021/05
DOI: 10.1038/s41534-021-00403-4
eISSN: 2056-6387
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Gate voltage dependence of noise distribution in radio-frequency reflectometry in gallium arsenide quantum dots Peer-reviewed
Motoya Shinozaki, Yui Muto, Takahito Kitada, Takashi Nakajima, Matthieu R. Delbecq, Jun Yoneda, Kenta Takeda, Akito Noiri, Takumi Ito, Arne Ludwig, Andreas D. Wieck, Seigo Tarucha, Tomohiro Otsuka
Applied Physics Express 14 (3) 2021/02
DOI: 10.35848/1882-0786/abe41f
ISSN: 1882-0778
eISSN: 1882-0786
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Formation of quantum dots in GaN/AlGaN FETs Peer-reviewed
Tomohiro Otsuka, Takaya Abe, Takahito Kitada, Norikazu Ito, Taketoshi Tanaka, Ken Nakahara
Scientific Reports 10 (1) 2020/09
DOI: 10.1038/s41598-020-72269-z
eISSN: 2045-2322
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Coherence of a Driven Electron Spin Qubit Actively Decoupled from Quasistatic Noise Peer-reviewed
Takashi Nakajima, Akito Noiri, Kento Kawasaki, Jun Yoneda, Peter Stano, Shinichi Amaha, Tomohiro Otsuka, Kenta Takeda, Matthieu R. Delbecq, Giles Allison, Arne Ludwig, Andreas D. Wieck, Daniel Loss, Seigo Tarucha
Physical Review X 10 (1) 2020/03
DOI: 10.1103/PhysRevX.10.011060
eISSN: 2160-3308
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量子デバイスの高周波測定技術―半導体量子ドット系における高周波反射測定― Peer-reviewed
Tomohiro Otsuka
固体物理 55 69-77 2020/02
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Density matrix simulation of quantum error correction codes for near-term quantum devices Peer-reviewed
Chungheon Baek, Tomohiro Ostuka, Seigo Tarucha, Byung Soo Choi
Quantum Science and Technology 5 (1) 2020
eISSN: 2058-9565
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Quantum non-demolition measurement of an electron spin qubit Peer-reviewed
Takashi Nakajima, Akito Noiri, Jun Yoneda, Matthieu R. Delbecq, Peter Stano, Tomohiro Otsuka, Kenta Takeda, Shinichi Amaha, Giles Allison, Kento Kawasaki, Arne Ludwig, Andreas D. Wieck, Daniel Loss, Seigo Tarucha
Nature Nanotechnology 14 (6) 555-560 2019/06
DOI: 10.1038/s41565-019-0426-x
ISSN: 1748-3387
eISSN: 1748-3395
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Spin-orbit assisted spin funnels in DC transport through a physically defined pMOS double quantum dot Peer-reviewed
Marian Marx, Jun Yoneda, Tomohiro Otsuka, Kenta Takeda, Yu Yamaoka, Takashi Nakajima, Sen Li, Akito Noiri, Tetsuo Kodera, Seigo Tarucha
Japanese Journal of Applied Physics 58 (SB) SBBI07-1--5 2019/04
Publisher: IOP PublishingISSN: 0021-4922
eISSN: 1347-4065
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Difference in charge and spin dynamics in a quantum dot-lead coupled system Peer-reviewed
Tomohiro Otsuka, Takashi Nakajima, Matthieu R. Delbecq, Peter Stano, Shinichi Amaha, Jun Yoneda, Kenta Takeda, Giles Allison, Sen Li, Akito Noiri, Takumi Ito, Daniel Loss, Arne Ludwig, Andreas D. Wieck, Seigo Tarucha
Physical Review B 99 (8) 085402-1--5 2019/02
Publisher: American Physical Society (APS)DOI: 10.1103/PhysRevB.99.085402
ISSN: 2469-9950
eISSN: 2469-9969
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第34回半導体物理学国際会議(ICPS2018)報告
Tomohiro Otsuka
固体物理 54 55-60 2019/01
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Coherent transfer of electron spin correlations assisted by dephasing noise Peer-reviewed
Takashi Nakajima, Matthieu R. Delbecq, Tomohiro Otsuka, Shinichi Amaha, Jun Yoneda, Akito Noiri, Kenta Takeda, Giles Allison, Arne Ludwig, Andreas D. Wieck, Xuedong Hu, Franco Nori, Seigo Tarucha
Nature Communications 9 (1) 2133-1--8 2018/12/01
Publisher: Nature Publishing GroupDOI: 10.1038/s41467-018-04544-7
ISSN: 2041-1723
eISSN: 2041-1723
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A fast quantum interface between different spin qubit encodings Peer-reviewed
A. Noiri, T. Nakajima, J. Yoneda, M. R. Delbecq, P. Stano, T. Otsuka, K. Takeda, S. Amaha, G. Allison, K. Kawasaki, Y. Kojima, A. Ludwig, A. D. Wieck, D. Loss, S. Tarucha
Nature Communications 9 (1) 5066-1--7 2018/11
DOI: 10.1038/s41467-018-07522-1
eISSN: 2041-1723
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Optimized electrical control of a Si/SiGe spin qubit in the presence of an induced frequency shift Peer-reviewed
Kenta Takeda, Jun Yoneda, Tomohiro Otsuka, Takashi Nakajima, Matthieu R. Delbecq, Giles Allison, Yusuke Hoshi, Noritaka Usami, Kohei M. Itoh, Shunri Oda, Tetsuo Kodera, Seigo Tarucha
npj Quantum Information 4 54-1--6 2018/10
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Four single-spin Rabi oscillations in a quadruple quantum dot Peer-reviewed
Takumi Ito, Takumi Ito, Tomohiro Otsuka, Tomohiro Otsuka, Tomohiro Otsuka, Tomohiro Otsuka, Takashi Nakajima, Takashi Nakajima, Matthieu R. Delbecq, Matthieu R. Delbecq, Matthieu R. Delbecq, Shinichi Amaha, Jun Yoneda, Jun Yoneda, Kenta Takeda, Kenta Takeda, Akito Noiri, Akito Noiri, Giles Allison, Arne Ludwig, Andreas D. Wieck, Seigo Tarucha, Seigo Tarucha, Seigo Tarucha, Seigo Tarucha
Applied Physics Letters 113 (9) 093102-1--5 2018/08
DOI: 10.1063/1.5040280
ISSN: 0003-6951
eISSN: 1077-3118
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A quantum-dot spin qubit with coherence limited by charge noise and fidelity higher than 99.9% Peer-reviewed
Jun Yoneda, Kenta Takeda, Tomohiro Otsuka, Takashi Nakajima, Matthieu R. Delbecq, Giles Allison, Takumu Honda, Tetsuo Kodera, Shunri Oda, Yusuke Hoshi, Noritaka Usami, Kohei M. Itoh, Seigo Tarucha
Nature Nanotechnology 13 (2) 102-106 2018/02
Publisher: Springer Science and Business Media LLCDOI: 10.1038/s41565-017-0014-x
ISSN: 1748-3387
eISSN: 1748-3395
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Cotunneling spin blockade observed in a three-terminal triple quantum dot Peer-reviewed
A. Noiri, T. Takakura, T. Obata, T. Otsuka, T. Nakajima, J. Yoneda, S. Tarucha
PHYSICAL REVIEW B 96 (15) 155414-1--7 2017/10
DOI: 10.1103/PhysRevB.96.155414
ISSN: 2469-9950
eISSN: 2469-9969
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Higher-order spin and charge dynamics in a quantum dot-lead hybrid system Peer-reviewed
Tomohiro Otsuka, Takashi Nakajima, Matthieu R. Delbecq, Shinichi Amaha, Jun Yoneda, Kenta Takeda, Giles Allison, Peter Stano, Akito Noiri, Takumi Ito, Daniel Loss, Arne Ludwig, Andreas D. Wieck, Seigo Tarucha
SCIENTIFIC REPORTS 7 12201-1--7 2017/09
DOI: 10.1038/s41598-017-12217-6
ISSN: 2045-2322
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A triangular triple quantum dot with tunable tunnel couplings Peer-reviewed
A. Noiri, K. Kawasaki, T. Otsuka, T. Nakajima, J. Yoneda, S. Amaha, M. R. Delbecq, K. Takeda, G. Allison, A. Ludwig, A. D. Wieck, S. Tarucha
SEMICONDUCTOR SCIENCE AND TECHNOLOGY 32 (8) 084004-1--5 2017/08
ISSN: 0268-1242
eISSN: 1361-6641
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Robust Single-Shot Spin Measurement with 99.5% Fidelity in a Quantum Dot Array Peer-reviewed
Takashi Nakajima, Matthieu R. Delbecq, Tomohiro Otsuka, Peter Stano, Shinichi Amaha, Jun Yoneda, Akito Noiri, Kento Kawasaki, Kenta Takeda, Giles Allison, Arne Ludwig, Andreas D. Wieck, Daniel Loss, Seigo Tarucha
PHYSICAL REVIEW LETTERS 119 (1) 017701-1--6 2017/07
DOI: 10.1103/PhysRevLett.119.017701
ISSN: 0031-9007
eISSN: 1079-7114
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Detection and control of charge states in a quintuple quantum dot Peer-reviewed
Takumi Ito, Tomohiro Otsuka, Shinichi Amaha, Matthieu R. Delbecq, Takashi Nakajima, Jun Yoneda, Kenta Takeda, Giles Allison, Akito Noiri, Kento Kawasaki, Seigo Tarucha
SCIENTIFIC REPORTS 6 39113-1--7 2016/12
DOI: 10.1038/srep39113
ISSN: 2045-2322
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A fault-tolerant addressable spin qubit in a natural silicon quantum dot Peer-reviewed
Kenta Takeda, Jun Kamioka, Tomohiro Otsuka, Jun Yoneda, Takashi Nakajima, Matthieu R. Delbecq, Shinichi Amaha, Giles Allison, Tetsuo Kodera, Shunri Oda, Seigo Tarucha
SCIENCE ADVANCES 2 (8) e1600694-1--6 2016/08
ISSN: 2375-2548
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Single-electron Spin Resonance in a Quadruple Quantum Dot Peer-reviewed
Tomohiro Otsuka, Takashi Nakajima, Matthieu R. Delbecq, Shinichi Amaha, Jun Yoneda, Kenta Takeda, Giles Allison, Takumi Ito, Retsu Sugawara, Akito Noiri, Arne Ludwig, Andreas D. Wieck, Seigo Tarucha
SCIENTIFIC REPORTS 6 31820-1--6 2016/08
DOI: 10.1038/srep31820
ISSN: 2045-2322
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Coherent electron-spin-resonance manipulation of three individual spins in a triple quantum dot Peer-reviewed
A. Noiri, J. Yoneda, T. Nakajima, T. Otsuka, M. R. Delbecq, K. Takeda, S. Amaha, G. Allison, A. Ludwig, A. D. Wieck, S. Tarucha
APPLIED PHYSICS LETTERS 108 (15) 153101 2016/04
DOI: 10.1063/1.4945592
ISSN: 0003-6951
eISSN: 1077-3118
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19pAG-14 Measurement of spin relaxation in quantum dots coupled to electric leads
Otsuka T., Nakajima T., Delbecq Matthieu, Amaha S., Yoneda J., Takeda K., Allison Giles, Noiri A., Ito T., Ludwig Arne, Wieck Andreas, Tarucha S.
Meeting Abstracts of the Physical Society of Japan 71 1319-1319 2016
Publisher: The Physical Society of Japan (JPS)DOI: 10.11316/jpsgaiyo.71.1.0_1319
ISSN: 2189-079X
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19pAG-12 Transfer of spin states to meta-stable charge configuration in a triple quantum dot
Nakajima T., Delbecq Matthieu R., Otsuka T., Amaha S., Yoneda J., Noiri A., Takeda K., Allison Giles, Ludwig Arne, Wieck Andreas, Tarucha S.
Meeting Abstracts of the Physical Society of Japan 71 1317-1317 2016
Publisher: The Physical Society of Japan (JPS)DOI: 10.11316/jpsgaiyo.71.1.0_1317
ISSN: 2189-079X
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19pAG-13 Competition between the Inhomogeneous Magnetic Field and the Exchange Interaction in the Electron Spin Resonance in a Triple Quantum Dot
Yoneda J., Noiri A., Nakajima T., Otsuka T., Delbecq Matthieu, Amaha S., Ludwig Arne, Wieck Andreas, Tarucha S.
Meeting Abstracts of the Physical Society of Japan 71 1318-1318 2016
Publisher: The Physical Society of Japan (JPS)DOI: 10.11316/jpsgaiyo.71.1.0_1318
ISSN: 2189-079X
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Single-shot readout of spin states in a triple quantum dot using a metastable charge state
Nakajima T., Delbecq M. R., Otsuka T., Yoneda J., Noiri A., Kawasaki K., Amaha S., Takeda K., Allison G., Ludwig A., Wieck A. D., Tarucha S.
Meeting Abstracts of the Physical Society of Japan 71 1158-1158 2016
Publisher: The Physical Society of JapanDOI: 10.11316/jpsgaiyo.71.2.0_1158
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AC Stark effect of a driven spin qubit in a magnetic field gradient
Takeda K., Kamioka J., Yoneda J., Otsuka T., Delbecq M. R., Allison G., Nakajima T., Kodera T., Oda S., Tarucha S.
Meeting Abstracts of the Physical Society of Japan 71 1161-1161 2016
Publisher: The Physical Society of JapanDOI: 10.11316/jpsgaiyo.71.2.0_1161
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The property of Rabi oscillations for a single electron spin in a quantum dot
Noiri A., Yoneda J., Nakajima T., Otsuka T., Delbecq M. R., Takeda K., Amaha S., Allison G., Ludwig A., Wieck A. D., Tarucha S.
Meeting Abstracts of the Physical Society of Japan 71 1162-1162 2016
Publisher: The Physical Society of JapanDOI: 10.11316/jpsgaiyo.71.2.0_1162
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Quantum Dephasing in a Gated GaAs Triple Quantum Dot due to Nonergodic Noise Peer-reviewed
M. R. Delbecq, T. Nakajima, P. Stano, T. Otsuka, S. Amaha, J. Yoneda, K. Takeda, G. Allison, A. Ludwig, A. D. Wieck, S. Tarucha
PHYSICAL REVIEW LETTERS 116 (4) 046802 2016/01
DOI: 10.1103/PhysRevLett.116.046802
ISSN: 0031-9007
eISSN: 1079-7114
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Fast probe of local electronic states in nanostructures utilizing a single-lead quantum dot Peer-reviewed
Tomohiro Otsuka, Shinichi Amaha, Takashi Nakajima, Matthieu R. Delbecq, Jun Yoneda, Kenta Takeda, Retsu Sugawara, Giles Allison, Arne Ludwig, Andreas D. Wieck, Seigo Tarucha
SCIENTIFIC REPORTS 5 14616 2015/09
DOI: 10.1038/srep14616
ISSN: 2045-2322
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Robust micromagnet design for fast electrical manipulations of single spins in quantum dots Peer-reviewed
Jun Yoneda, Tomohiro Otsuka, Tatsuki Takakura, Michel Pioro-LadriSre, Roland Brunner, Hong Lu, Takashi Nakajima, Toshiaki Obata, Akito Noiri, Christopher J. Palmstrom, Arthur C. Gossard, Seigo Tarucha
APPLIED PHYSICS EXPRESS 8 (8) 084401 2015/08
ISSN: 1882-0778
eISSN: 1882-0786
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17aAG-12 Charge transport properties of a triangular triple quantum dot
Kawasaki K., Noiri A., Amaha S., Otsuka T., Nakajima T., Yoneda J., Delbecq M., Tarucha S.
Meeting Abstracts of the Physical Society of Japan 70 1054-1054 2015
Publisher: The Physical Society of Japan (JPS)DOI: 10.11316/jpsgaiyo.70.2.0_1054
ISSN: 2189-079X
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16aAE-5 Fast and addressable single-spin operation in a Si double quantum dot
Takeda K., Kamioka J., Obata T., Otsuka T., Nakajima T., M. R. Delbecq, Amaha S., Yoneda J., G. Alison, Noiri A., Sugawara R., Kodera T., Oda S., Tarucha S.
Meeting Abstracts of the Physical Society of Japan 70 1006-1006 2015
Publisher: The Physical Society of Japan (JPS)DOI: 10.11316/jpsgaiyo.70.2.0_1006
ISSN: 2189-079X
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16aAE-6 Coherent oscillation of entangled spin states in next-nearest neighbor quantum dots
Nakajima T., Delbecq M. R., Otsuka T., Amaha S., Yoneda J., Noiri A., Takeda K., Ludwig A., Wieck A. D., Tarucha S.
Meeting Abstracts of the Physical Society of Japan 70 1007-1007 2015
Publisher: The Physical Society of Japan (JPS)DOI: 10.11316/jpsgaiyo.70.2.0_1007
ISSN: 2189-079X
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16aAE-2 Measurement of charge state in multiple quantum dots by multiplexed fast charge sensors
Ito T., Otsuka T., Amaha S., Nakajima T., Delbecq M., Yoneda J., Takeda K., Allison G., Noiri A., Tarucha S.
Meeting Abstracts of the Physical Society of Japan 70 1003-1003 2015
Publisher: The Physical Society of Japan (JPS)DOI: 10.11316/jpsgaiyo.70.2.0_1003
ISSN: 2189-079X
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16aAE-1 Single-electron spin resonance in a quadruple quantum dot
Otsuka T., Nakajima T., Delbecq M., Amaha S., Yoneda J., Takeda K., Noiri A., Sugawara R., Allison G., Ludwig A., Wieck A., Tarucha S.
Meeting Abstracts of the Physical Society of Japan 70 1002-1002 2015
Publisher: The Physical Society of Japan (JPS)DOI: 10.11316/jpsgaiyo.70.2.0_1002
ISSN: 2189-079X
-
23pBK-2 Realization of a fast single-lead quantum dot probe and evaluation of the properties by probing quantum dot states
Otsuka T., Amaha S., Nakajima T., Delbecq M., Yoneda J., Takeda K., Sugawara R., Ludwig Arne, Wieck Andreas, Tarucha S.
Meeting Abstracts of the Physical Society of Japan 70 1369-1369 2015
Publisher: The Physical Society of Japan (JPS)DOI: 10.11316/jpsgaiyo.70.1.0_1369
ISSN: 2189-079X
-
23pBK-7 Improvement of slanting field ESR method by Alumina insulator layer
Ito T., Noiri A., Yoneda J., Nakajima T., Otsuka T., Amaha S., Tarucha S.
Meeting Abstracts of the Physical Society of Japan 70 1374-1374 2015
Publisher: The Physical Society of Japan (JPS)DOI: 10.11316/jpsgaiyo.70.1.0_1374
ISSN: 2189-079X
-
23pBK-11 Measurement of spin-valley states in a Si double quantum dot using electron spin resonance
Takeda K., Kamioka J., Obata T., Otsuka T., Nakajima T., Delbecq M. R., Amaha S., Yoneda J., Noiri A., Sugawara R., Kodera T., Oda S., Tarucha S.
Meeting Abstracts of the Physical Society of Japan 70 1378-1378 2015
Publisher: The Physical Society of Japan (JPS)DOI: 10.11316/jpsgaiyo.70.1.0_1378
ISSN: 2189-079X
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23pBK-8 The property of resonance frequencies and Rabi frequencies of 3 spin qubits in a triple quantum dot
Noiri A., Yoneda J., Nakajima T., Otsuka T., Delbecq Matthieu, Amaha S., Ludwig Arne, Wieck Andreas D., Tarucha S.
Meeting Abstracts of the Physical Society of Japan 70 1375-1375 2015
Publisher: The Physical Society of Japan (JPS)DOI: 10.11316/jpsgaiyo.70.1.0_1375
ISSN: 2189-079X
-
23pBK-10 Exploring multiple quantum dots circuits charge stability diagrams
Delbecq Matthieu, Nakajima Takashi, Otsuka Tomohiro, Amaha Shinichi, Yoneda Jun, Watson John, Manfra Michael, Tarucha Seigo
Meeting Abstracts of the Physical Society of Japan 70 1377-1377 2015
Publisher: The Physical Society of Japan (JPS)DOI: 10.11316/jpsgaiyo.70.1.0_1377
ISSN: 2189-079X
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23pBK-9 Fidelity improvement in spin qubits based on triple quantum dots
Nakajima T., Delbecq M. R., Otsuka T., Amaha S., Yoneda J., Noiri A., Takeda K., Ludwig Arne, Wieck Andreas D., Tarucha S.
Meeting Abstracts of the Physical Society of Japan 70 1376-1376 2015
Publisher: The Physical Society of Japan (JPS)DOI: 10.11316/jpsgaiyo.70.1.0_1376
ISSN: 2189-079X
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Fast Electrical Control of Single Electron Spins in Quantum Dots with Vanishing Influence from Nuclear Spins Peer-reviewed
J. Yoneda, T. Otsuka, T. Nakajima, T. Takakura, T. Obata, M. Pioro-Ladriere, H. Lu, C. J. Palmstrom, A. C. Gossard, S. Tarucha
PHYSICAL REVIEW LETTERS 113 (26) 267601 2014/12
DOI: 10.1103/PhysRevLett.113.267601
ISSN: 0031-9007
eISSN: 1079-7114
-
Single-spin manipulation in a double quantum dot in the field of a micromagnet Peer-reviewed
Stefano Chesi, Ying-Dan Wang, Jun Yoneda, Tomohiro Otsuka, Seigo Tarucha, Daniel Loss
PHYSICAL REVIEW B 90 (23) 235311 2014/12
DOI: 10.1103/PhysRevB.90.235311
ISSN: 1098-0121
eISSN: 1550-235X
-
Full control of quadruple quantum dot circuit charge states in the single electron regime Peer-reviewed
M. R. Delbecq, T. Nakajima, T. Otsuka, S. Amaha, J. D. Watson, M. J. Manfra, S. Tarucha
APPLIED PHYSICS LETTERS 104 (18) 183111 2014/05
DOI: 10.1063/1.4875909
ISSN: 0003-6951
eISSN: 1077-3118
-
Single to quadruple quantum dots with tunable tunnel couplings Peer-reviewed
T. Takakura, A. Noiri, T. Obata, T. Otsuka, J. Yoneda, K. Yoshida, S. Tarucha
APPLIED PHYSICS LETTERS 104 (11) 113109 2014/03
DOI: 10.1063/1.4869108
ISSN: 0003-6951
eISSN: 1077-3118
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Measurement of Energy Relaxation in Quantum Hall Edge States Utilizing Quantum Point Contacts Peer-reviewed
Tomohiro Otsuka, Yuuki Sugihara, Jun Yoneda, Takashi Nakajima, Seigo Tarucha
JOURNAL OF THE PHYSICAL SOCIETY OF JAPAN 83 (1) 014710 2014/01
ISSN: 0031-9015
-
Detection of spin polarization utilizing singlet and triplet states in a single-lead quantum dot Peer-reviewed
Otsuka, Tomohiro, Sugihara, Yuuki, Yoneda, Jun, Katsumoto, Shingo, Tarucha, Seigo
Physical Review B 86 (8) 081308(R) 2012
DOI: 10.1103/PhysRevB.86.081308
-
Aluminum oxide for an effective gate in Si/SiGe two-dimensional electron gas systems Peer-reviewed
Yun-Sok Shin, Roland Brunner, Akihiro Shibatomi, Toshiaki Obata, Tomohiro Otsuka, Jun Yoneda, Yasuhiro Shiraki, Kentarou Sawano, Yasuhiro Tokura, Yuichi Harada, Koji Ishibashi, Seigo Tarucha
SEMICONDUCTOR SCIENCE AND TECHNOLOGY 26 (5) 055004 2011/05
DOI: 10.1088/0268-1242/26/5/055004
ISSN: 0268-1242
eISSN: 1361-6641
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Energy level spectroscopy of a quantum dot with a side-coupled satellite dot Peer-reviewed
S. W. Kim, Y. Kuwabara, T. Otsuka, Y. Iye, S. Katsumoto
PHYSICS OF SEMICONDUCTORS: 30TH INTERNATIONAL CONFERENCE ON THE PHYSICS OF SEMICONDUCTORS 1399 393-394 2011
DOI: 10.1063/1.3666419
ISSN: 0094-243X
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Detection of spin polarization in a quantum wire Peer-reviewed
Otsuka, Tomohiro, Abe, Eisuke, Iye, Yasuhiro, Katsumoto, Shingo
Physica E-Low-Dimensional Systems & Nanostructures 42 (4) 809-812 2010
DOI: 10.1016/j.physe.2009.10.034
ISSN: 1386-9477
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Probing local electronic states in the quantum Hall regime with a side-coupled quantum dot Peer-reviewed
Otsuka, Tomohiro, Abe, Eisuke, Iye, Yasuhiro, Katsumoto, Shingo
Physical Review B 81 (24) 245302 2010
DOI: 10.1103/PhysRevB.81.245302
-
Detection of spin polarization with a side-coupled quantum dot Peer-reviewed
Otsuka, Tomohiro, Abe, Eisuke, Iye, Yasuhiro, Katsumoto, Shingo
Physical Review B 79 (19) 195313 2009
DOI: 10.1103/PhysRevB.79.195313
-
Control of shell filling with Coulomb interaction in quantum dots side-coupled to quantum wires Peer-reviewed
Tomohiro Otsuka, Eisuke Abe, Yasuhiro Iye, Shingo Katsumoto
PHYSICA STATUS SOLIDI C - CURRENT TOPICS IN SOLID STATE PHYSICS, VOL 5, NO 9 5 (9) 2873-2875 2008
ISSN: 1610-1634
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Potential dependent intra-dot Coulomb interaction in quantum dots side-coupled to quantum wires Peer-reviewed
Otsuka, Tomohiro, Abe, Eisuke, Iye, Yasuhiro, Katsumoto, Shingo
Physica E-Low-Dimensional Systems & Nanostructures 40 (5) 1270-1272 2008
DOI: 10.1016/j.physe.2007.08.048
ISSN: 1386-9477
-
Control of shell filling with Coulomb interaction in quantum dots side-coupled to quantum wires Peer-reviewed
Otsuka, Tomohiro, Abe, Eisuke, Iye, Yasuhiro, Katsumoto, Shingo
Physica Status Solidi C - Current Topics in Solid State Physics, Vol 5, No 9 5 2873-2875 2008
ISSN: 1862-6351
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Excited-state spectroscopy on a quantum dot side coupled to a quantum wire Peer-reviewed
Otsuka, T., Abe, E., Iye, Y., Katsumoto, S.
Applied Physics Letters 93 (11) 112111 2008
DOI: 10.1063/1.2987424
-
Phase information from two-terminal conductance of quantum dot systems Peer-reviewed
Otsuka, Tomohiro, Aikawa, Hisashi, Eto, Mikio, Khym, Gyong L., Kang, Kicheon, Iye, Yasuhiro, Katsumoto, Shingo
Physics of Semiconductors, Pts a and B 893 855-856 2007
DOI: 10.1063/1.2730160
ISSN: 0094-243X
-
Fano effect in a few-electron quantum dot Peer-reviewed
Otsuka, Tomohiro, Abe, Eisuke, Katsumoto, Shingo, Iye, Yasuhiro, Khym, Gyong L., Kang, Kicheon
Journal of the Physical Society of Japan 76 (8) 084706 2007
-
Breakdown of phase rigidity and variations of the Fano effect in closed Aharonov-Bohm interferometers Peer-reviewed
Aharony, A, Entin-Wohlman, O, Otsuka, T, Katsumoto, S, Aikawa, H, Kobayashi, K
Physical Review B 73 (19) 195329 2006
DOI: 10.1103/PhysRevB.73.195329
Misc. 49
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Visual explanations of the machine learning model to recognize the charge states in quantum dots
武藤由依, 中曽拓, 相澤拓海, 篠崎基矢, 北田孝仁, 中島峻, DELBECQ Matthieu R., 米田淳, 武田健太, 野入亮人, LUDWIG Arne, WIECK Andreas D., 樽茶清悟, 兼村厚範, 志賀元紀, 大塚朋廣
日本物理学会講演概要集(CD-ROM) 78 (1) 2023
ISSN: 2189-079X
-
Improving generalization ability of automatic charge-state estimation in quantum dots by machine learning
武藤由依, 中曽拓, 相澤拓海, 篠崎基矢, 北田孝仁, 中島峻, DELBECQ Matthieu R., 米田淳, 武田健太, 野入亮人, LUDWIG Arne, WIECK Andreas D., 樽茶清悟, 兼村厚範, 志賀元紀, 大塚朋廣
日本物理学会講演概要集(CD-ROM) 78 (2) 2023
ISSN: 2189-079X
-
Noise-robust charge state recognition in quantum dots using machine learning and preprocessing
武藤由依, 中曽拓, 相澤拓海, 篠崎基矢, 北田孝仁, 中島峻, DELBECQ Matthieu R., 米田淳, 武田健太, 野入亮人, LUDWIG Arne, WIECK Andreas D., 樽茶清悟, 兼村厚範, 大塚朋廣
日本物理学会講演概要集(CD-ROM) 77 (1) 2022
ISSN: 2189-079X
-
Real-time measurement of QCA charge state transition in quantum dots by rf-reflectometry
相澤拓海, 篠崎基矢, 藤原義弘, 熊坂武志, 中島峻, DELBECQ Matthieu R., 米田淳, 武田健太, 野入亮人, LUDWIG Arne, WIECK Andreas D., 樽茶清悟, 大塚朋廣
日本物理学会講演概要集(CD-ROM) 77 (1) 2022
ISSN: 2189-079X
-
Noise analysis of high-frequency measurements in quantum dots
篠崎基矢, 武藤由依, 北田孝仁, 中島峻, DELBECQ Matthieu R., 米田淳, 武田健太, 野入亮人, 伊藤匠, LUDWIG Arne, WIECK Andreas D., 樽茶清悟, 大塚朋廣
日本物理学会講演概要集(CD-ROM) 75 (2) 2020
ISSN: 2189-079X
-
Noise dependence of the charge state estimation in quantum dots by Bayesian estimation
武藤由依, 篠崎基矢, 北田孝仁, 永安修也, 中島峻, DELBECQ Matthieu R., 米田淳, 武田健太, 野入亮人, LI Sen, 伊藤匠, 樽茶清悟, 大塚朋廣
日本物理学会講演概要集(CD-ROM) 75 (2) 2020
ISSN: 2189-079X
-
Charge state estimation of quantum dots by machine learning
中曽拓, 篠崎基矢, 相澤拓海, 北田孝仁, 武藤由依, 中島峻, DELBECQ Matthieu R., 米田淳, 武田健太, 野入亮人, 伊藤匠, LUDWIG Arne, WIECK Andreas D., 樽茶清悟, 兼村厚範, 大塚朋廣
日本物理学会講演概要集(CD-ROM) 75 (2) 2020
ISSN: 2189-079X
-
電子スピンの量子テレポーテーションに向けた実験
小嶋洋平, 小嶋洋平, 中島峻, 野入亮人, 米田淳, 大塚朋廣, 大塚朋廣, 武田健太, LI Sen, BARTLETT Stephen D., LUDWIG Arne, WIECK Andreas D., 樽茶清悟, 樽茶清悟
日本物理学会講演概要集(CD-ROM) 74 (1) 2019
ISSN: 2189-079X
-
微小磁石ESRに用いる局所磁場パラメータの解析
伊藤匠, 大塚朋廣, 中島峻, DELBECQ Matthieu, 天羽真一, 米田淳, 武田健太, 野入亮人, ALLISON Giles, LUDWIG Arne, WIECK Andreas, 樽茶清悟
日本物理学会講演概要集(CD-ROM) 74 (1) 2019
ISSN: 2189-079X
-
フィードバック制御による電子スピン量子ビットの操作忠実度の向上
野入亮人, 中島峻, 川崎賢人, 米田淳, STANO Peter, 天羽真一, 大塚朋廣, 武田健太, DELBECQ Matthieu R., ALLISON Giles, LUDWIG Arne, WIECK Andreas D., LOSS Daniel, LOSS Daniel, 樽茶清悟, 樽茶清悟
日本物理学会講演概要集(CD-ROM) 74 (1) 2019
ISSN: 2189-079X
-
4重量子ドットにおける4電子スピン状態測定法の開発
伊藤匠, 大塚朋廣, 中島峻, DELBECQ Matthieu, 天羽真一, 米田淳, 武田健太, 野入亮人, ALLISON Giles, LUDWIG Arne, WIECK Andreas D., 樽茶清悟
日本物理学会講演概要集(CD-ROM) 74 (2) 2019
ISSN: 2189-079X
-
シリコン量子ドットにおける2スピン同時検出
米田淳, 武田健太, 野入亮人, 中島峻, 大塚朋廣, LI Sen, 小寺哲夫, 樽茶清悟
日本物理学会講演概要集(CD-ROM) 73 (1) 2018
ISSN: 2189-079X
-
電子スピンの量子テレポーテーションに向けた実験スキーム
小嶋洋平, 小嶋洋平, 中島峻, 野入亮人, 米田淳, 大塚朋廣, 武田健太, 伊藤匠, 伊藤匠, BARTLETT Stephen D., LUDWIG Arne, WIECK Andreas D., 樽茶清悟, 樽茶清悟
日本物理学会講演概要集(CD-ROM) 73 (1) 2018
ISSN: 2189-079X
-
ベイズ推定を用いた量子ドット電荷計の信号解析
大塚朋廣, 永安修也, 中島峻, DELBECQ Matthieu R., 米田淳, 武田健太, 野入亮人, LI Sen, 伊藤匠, 樽茶清悟
日本物理学会講演概要集(CD-ROM) 73 (1) 2018
ISSN: 2189-079X
-
異種スピン量子ビット間の制御位相ゲート
野入亮人, 中島峻, 米田淳, DELBECQ Matthieu R., STANO Peter, 大塚朋廣, 武田健太, 天羽真一, ALLISON Giles, 川崎賢人, LUDWIG Arne, WIECK Andreas D., LOSS Daniel, LOSS Daniel, 樽茶清悟, 樽茶清悟
日本物理学会講演概要集(CD-ROM) 73 (1) 2018
ISSN: 2189-079X
-
同位体制御Si/SiGe単一電子スピンの1/f電荷揺らぎによる位相雑音
米田淳, 武田健太, 大塚朋廣, 中島峻, DELBECQ Matthieu R, ALLISON Giles, 本田拓夢, 小寺哲夫, 小田俊理, 星裕介, 宇佐美徳隆, 伊藤公平, 樽茶清悟
日本物理学会講演概要集(CD-ROM) 72 (2) ROMBUNNO.21pB31‐4 2017/09/25
ISSN: 2189-079X
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同位体制御Si/SiGe電子スピン量子ビットの高速量子操作忠実度
米田淳, 武田健太, 大塚朋廣, 中島峻, DELBECQ Matthieu R, ALLISON Giles, 本田拓夢, 小寺哲夫, 小田俊理, 星裕介, 宇佐美徳隆, 伊藤公平, 樽茶清悟
日本物理学会講演概要集(CD-ROM) 72 (1) ROMBUNNO.17pA21‐7 2017/03/21
ISSN: 2189-079X
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異種スピン量子ビット間の制御NOTゲート II
中島峻, 野入亮人, 米田淳, 大塚朋廣, 武田健太, DELBECQ Matthieu R., 川崎賢人, ALLISON Giles, LUDWIG Arne, WIECK Andreas D., 樽茶清悟, 樽茶清悟
日本物理学会講演概要集(CD-ROM) 72 (1) 2017
ISSN: 2189-079X
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異種スピン量子ビット間の制御NOTゲート I
野入亮人, 中島峻, 米田淳, 大塚朋廣, 武田健太, DELBECQ Matthieu R., 川崎賢人, ALLISON Giles, LUDWIG Arne, WIECK Andreas D., 樽茶清悟, 樽茶清悟
日本物理学会講演概要集(CD-ROM) 72 (1) 2017
ISSN: 2189-079X
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フィードバック制御による電子スピン位相緩和の抑制 II
野入亮人, 川崎賢人, 中島峻, 米田淳, STANO P., 大塚朋廣, 武田健太, DELBECQ Matthieu R., ALLISON Giles, LUDWIG Arne, WIECK Andreas D., LOSS D., 樽茶清悟, 樽茶清悟
日本物理学会講演概要集(CD-ROM) 72 (2) 2017
ISSN: 2189-079X
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フィードバック制御による電子スピン位相緩和の抑制 I
中島峻, 川崎賢人, 野入亮人, 米田淳, STANO P., 大塚朋廣, 武田健太, DELBECQ Matthieu R., ALLISON Giles, LUDWIG Arne, WIECK Andreas D., LOSS D., 樽茶清悟, 樽茶清悟
日本物理学会講演概要集(CD-ROM) 72 (2) 2017
ISSN: 2189-079X
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4重量子ドットにおける4スピンの独立なRabi振動の観測
伊藤匠, 大塚朋廣, 中島峻, DELBECQ Matthieu, 天羽真一, 米田淳, 武田健太, 野入亮人, ALLISON Giles, LUDWIG Arne, WIECK Andreas D., 樽茶清悟
日本物理学会講演概要集(CD-ROM) 72 (1) 2017
ISSN: 2189-079X
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量子ドット-電極結合系における電荷・スピンダイナミクス
大塚朋廣, 中島峻, DELBECQ Matthieu R., STANO Peter, 天羽真一, 米田淳, 武田健太, ALLISON Giles, 野入亮人, 伊藤匠, LOSS Daniel, LUDWIG Arne, WIECK Andreas D., 樽茶清悟
日本物理学会講演概要集(CD-ROM) 72 (2) 2017
ISSN: 2189-079X
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同位体制御されたSi/SiGe量子ドットにおける単一電子スピン共鳴
米田淳, 武田健太, 大塚朋廣, 中島峻, DELBECQ Matthieu R, ALLISON Giles, 本田拓夢, 小寺哲夫, 小田俊理, 星裕介, 宇佐美徳隆, 伊藤公平, 樽茶清悟
日本物理学会講演概要集(CD-ROM) 71 (2) ROMBUNNO.15aAB‐11 2016/09/23
ISSN: 2189-079X
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Si/SiGe多重量子ドットの形成と電荷状態測定
大塚朋廣, 武田健太, 米田淳, 本田拓夢, DELBECQ Matthieu, ALLISON Giles, MARX Marian, 中島峻, 小寺哲夫, 小田俊理, 星裕介, 宇佐美徳隆, 伊藤公平, 樽茶清悟
日本物理学会講演概要集(CD-ROM) 71 (2) ROMBUNNO.15aAB‐10 2016/09/23
ISSN: 2189-079X
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領域4「III-V族半導体によるトポロジカル絶縁体の実現〜InAs/GaSb量子スピンホール系のエッジ伝導〜」(企画講演,第70回年次大会(2015年)招待・企画・チュートリアル講演の報告,学会報告)
大塚 朋廣
日本物理學會誌 70 (8) 638-638 2015/08/05
Publisher: 一般社団法人日本物理学会ISSN: 0029-0181
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電極閉じ込め型シリコンMOS量子ドットの作製と評価
米田淳, 本田拓夢, 武田健太, MARX Marian, 大塚朋廣, 中島峻, DELBECQ Matthieu, 天羽真一, ALLISON Giles, 小寺哲夫, 小田俊理, 樽茶清悟
日本物理学会講演概要集(CD-ROM) 70 (2) 2015
ISSN: 2189-079X
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8pAV-4 Experimental Study of Spin Qubits in Triple Quantum Dot II
Nakajima Takashi, Otsuka Tomohiro, Delbecq Matthieu, Amaha Shinichi, Yoneda Jun, Noiri Akito, Takeda Kenta, Sugawara Retsu, Tarucha Seigo
Meeting abstracts of the Physical Society of Japan 69 (2) 478-478 2014/08/22
Publisher: The Physical Society of Japan (JPS)ISSN: 1342-8349
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8pAV-3 Experimental Study of Spin Qubits in Triple Quantum Dot I
Otsuka T., Nakajima T., Delbecq M., Amaha S., Yoneda J., Noiri A., Takeda K., Sugawara R., Tarucha S.
Meeting abstracts of the Physical Society of Japan 69 (2) 478-478 2014/08/22
Publisher: The Physical Society of Japan (JPS)ISSN: 1342-8349
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8pAV-5 Electrically driven single-electron spin resonance in a Si/SiGe double quantum dot with a micromagnet
Takeda K., Kamioka J., Obata T., Otsuka T., Nakajima T., Delbecq M., Amaha S., Yoneda J., Noiri A., Sugawara R., Kodera T., Oda S., Tarucha S.
Meeting abstracts of the Physical Society of Japan 69 (2) 478-478 2014/08/22
Publisher: The Physical Society of Japan (JPS)ISSN: 1342-8349
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三重量子ドットを用いたスピン・キュービット実験 I
大塚朋廣, 中島峻, DELBECQ M., 天羽真一, 米田淳, 野入亮人, 武田健太, 菅原烈, 樽茶清悟
日本物理学会講演概要集 69 (2) 2014
ISSN: 1342-8349
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Pauli spin blockade in a three-terminal triple quantum dot
Noiri A., Takakura T., Obata T., Otsuka T., Nakajima T., Yoneda J., Tarucha S.
Meeting abstracts of the Physical Society of Japan 68 (2) 634-634 2013/08/26
Publisher: The Physical Society of Japan (JPS)ISSN: 1342-8349
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Phase Gates Of A Single Electron Spin Qubit
Yoneda J., Otsuka T., Nakajima T., Takakura T., Obata T., Tarucha S.
Meeting abstracts of the Physical Society of Japan 68 (2) 635-635 2013/08/26
Publisher: The Physical Society of Japan (JPS)ISSN: 1342-8349
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Probing energy relaxation in quantum Hall edge states utilizing quantum point contacts
Otsuka T., Sugihara Y., Yoneda J., Nakajima T., Tarucha S.
Meeting abstracts of the Physical Society of Japan 68 (2) 611-611 2013/08/26
Publisher: The Physical Society of Japan (JPS)ISSN: 1342-8349
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29aXQ-4 Time-resolved Measurement of Fast Rabi Oscillation of Single-electron Spin Rresonance
Yoneda J., Otsuka T., Nakajima T., Takakura T., Obata T., Tarucha S.
Meeting abstracts of the Physical Society of Japan 68 (1) 784-784 2013/03/26
Publisher: The Physical Society of Japan (JPS)ISSN: 1342-8349
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29aXQ-11 Quadruple Quantum Dot with Tunable Interdot Tunnel Couplings
Noiri A., Takakura T., Obata T., Otsuka T., Yoneda J., Yoshida K., Tarucha S.
Meeting abstracts of the Physical Society of Japan 68 (1) 786-786 2013/03/26
Publisher: The Physical Society of Japan (JPS)ISSN: 1342-8349
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26aXQ-6 Gate-Bias Dependence of Conductance Fluctuations in GaAs Quantum Point Contacts
Nakajima Takashi, Otsuka Tomohiro, Yoneda Jun, Noiri Akito, Tarucha Seigo
Meeting abstracts of the Physical Society of Japan 68 (1) 743-743 2013/03/26
Publisher: The Physical Society of Japan (JPS)ISSN: 1342-8349
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26pCE-8 Electron spin resonance in a double quantum dot with large Zeeman field difference
Yoneda J., Otsuka T., Takakura T., Obata T., Tarucha S.
Meeting abstracts of the Physical Society of Japan 67 (1) 744-744 2012/03/05
Publisher: The Physical Society of Japan (JPS)ISSN: 1342-8349
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26pCE-7 Detection of spin polarization utilizing two-electron states in a single-lead quantum dot
Otsuka T., Sugihara Y., Yoneda J., Obata T., Katsumoto S., Tarucha S.
Meeting abstracts of the Physical Society of Japan 67 (1) 744-744 2012/03/05
Publisher: The Physical Society of Japan (JPS)ISSN: 1342-8349
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24aTR-6 Control of local Zeeman energy difference between neighboring quantum dots by micro-magnet design
Yoneda J., Otsuka T., Takakura T., Obata T., Tarucha S.
Meeting abstracts of the Physical Society of Japan 66 (2) 705-705 2011/08/24
Publisher: The Physical Society of Japan (JPS)ISSN: 1342-8349
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28pHD-2 Energy Level Spectroscopy of a Quantum Dot with a Side-coupled Satellite Dot
Kuwabara Yuki, Kim Sunwoo, Otsuka Tomohiro, Iye Yasuhiro, Katsumoto Shingo
Meeting abstracts of the Physical Society of Japan 66 (1) 729-729 2011/03/03
Publisher: The Physical Society of Japan (JPS)ISSN: 1342-8349
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28aHD-3 Double-quantum-dot devices with a large difference in local magnetic field for fast spin manipulation
Yoneda J., Otsuka T., Takakura T., Obata T., Tarucha S.
Meeting abstracts of the Physical Society of Japan 66 (1) 724-724 2011/03/03
Publisher: The Physical Society of Japan (JPS)ISSN: 1342-8349
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26aXG-11 Probing quantum Hall states with a side coupled quantum dot
Otsuka T., Abe E., Iye Y., Katsumoto S.
Meeting abstracts of the Physical Society of Japan 64 (2) 595-595 2009/08/18
Publisher: The Physical Society of Japan (JPS)ISSN: 1342-8349
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30pTX-6 Detection of Spin Polarization with a Side Coupled Quantum Dot
Otsuka T., Abe E., Iye Y., Katsumoto S.
Meeting abstracts of the Physical Society of Japan 64 (1) 714-714 2009/03/03
Publisher: The Physical Society of Japan (JPS)ISSN: 1342-8349
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20pYF-4 Excited-State Spectroscopy on a Side-Coupled Quantum Dot
Otsuka T., Abe E., Iye Y., Katsumoto S.
Meeting Abstracts of the Physical Society of Japan 63 (0) 593-593 2008
Publisher: The Physical Society of JapanDOI: 10.11316/jpsgaiyo.63.2.4.0_593_3
ISSN: 1342-8349
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24aTH-8 Coulomb Interaction in a Side-Coupled Quantum Dot
Otsuka T., Abe E., Katsumoto S., Iye Y.
Meeting abstracts of the Physical Society of Japan 62 (2) 713-713 2007/08/21
Publisher: The Physical Society of Japan (JPS)ISSN: 1342-8349
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20pRC-12 Non-Local Control of the Kondo Effect
Otsuka T., Katsumoto S., Iye Y.
Meeting abstracts of the Physical Society of Japan 62 (1) 685-685 2007/02/28
Publisher: The Physical Society of Japan (JPS)ISSN: 1342-8349
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29pXB-1 On Breaking of "Phase Rigidity" in Transport through a Two-Terminal AB Ring
Katsumoto Shingo, Ohtsuka Tomohiro, Aharony Amnon, Entin-Wohlman Ora
Meeting abstracts of the Physical Society of Japan 61 (1) 695-695 2006/03/04
Publisher: The Physical Society of Japan (JPS)ISSN: 1342-8349
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29pXB-2 Quantum transport through a quantum wire with a side-coupled quantum dot
Otsuka T., Katsumoto S., Iye Y., Khym G.L., Kang Kicheon
Meeting abstracts of the Physical Society of Japan 61 (1) 695-695 2006/03/04
Publisher: The Physical Society of Japan (JPS)ISSN: 1342-8349
Presentations 217
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Devices utilizing new materials for semiconductor quantum technologies Invited
Tomohiro Otsuka
International VLSI Symposium on Technology, Systems and Applications 2025/04/23
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酸化亜鉛少数電子二重量子ドットの形成
野呂康介, 篠﨑基矢, 小塚裕介, 松村和真, 藤原義弘, 熊坂武志, 塚﨑敦, 川﨑雅司, 大塚朋廣
日本物理学会 2025/03/21
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機械学習による量子ドットの単一電子領域検出とバーチャルゲート定義の自動化
武藤由依, Michael R. Zielewski, 篠﨑基矢, 野呂康介, 大塚朋廣
日本物理学会 2025/03/21
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New materials and techniques for semiconductor spin-based quantum technologies Invited
Tomohiro Otsuka
Impurity Spins for Quantum Information Science and Technologies 2024/12/04
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Semiconductor quantum devices based on new materials Invited
Tomohiro Otsuka
3rd International Workshop of Spin/Quantum Materials and Devices & 6th Workshop on Quantum and Classical Cryogenic Devices, Circuits, and Systems 2024/11/06
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Exploring Quantum Devices with New Materials Invited
Tomohiro Otsuka
Quantum Innovation 2024 2024/10/23
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RFSoCを用いた半導体量子デバイス高周波反射測定系の構築
篠﨑基矢, 上面友也, 保坂有杜, 瀬尾拓未, 八島俊介, 白地昭豊鏡, 野呂康介, 佐藤彰一, 熊坂武志, 吉田剛, 大塚朋廣
日本物理学会 2024/09/18
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低温可変共振回路に向けたSrTiO3可変容量コンデンサ特性の面方位・ドープ依存性
白地昭豊鏡, 篠崎基矢, 富岡泰秀, 小塚裕介, 佐藤彰一, 熊坂武志, 大塚朋廣
日本物理学会 2024/09/18
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原子間力顕微鏡による宙づりグラフェンの局所陽極酸化
田中奎伍, 柿添勇成, 松井朋裕, 大塚朋廣, 原正大
日本物理学会 2024/09/16
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スピン量子ビットを用いた電子波束の単発測定手法の開発
Yunseong Jang, Han, Ngoc Tu, 藤田高史, 大塚朋廣, Arne Ludwig, Andreas D. Wieck, 山本倫久, Christopher Bäuerle, 新見康洋, 高田真太郎
日本物理学会 2024/09/16
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New material-based approaches in quantum devices Invited
Tomohiro Otsuka
International Conference on Solid State Devices and Materials 2024/09/02
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Formation of quantum dots in ZnO heterostructures and observation of Kondo Effect
Kosuke Noro, Yusuke Kozuka, Kazuma Matsumura, Takeshi Kumasaka, Yoshihiro Fujiwara, Atsushi Tsukazaki, Masashi Kawasaki, Tomohiro Otsuka
International Conference on the Physics of Semiconductors 2024 2024/08/01
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Classifying the Charge State of Quantum Dots by Machine Learning and Improving the Performance by Visual Explanations of the Model
Yui Muto, Takumi Nakaso, Motoya Shinozaki, Takumi Aizawa, Takahito Kitada, Takashi Nakajima, Matthieu R. Delbecq, Jun Yoneda, Kenta Takeda, Akito Noiri, Arne Ludwig, Andreas D. Wieck, Seigo Tarucha, Atsunori Kanemura, Motoki Shiga, Tomohiro Otsuka
International Conference on the Physics of Semiconductors 2024 2024/07/30
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単一ペロブスカイト量子ドットの電気伝導特性
高橋央輔, 大塚朋廣, 柴田 憲治
2024年第71回 応用物理学会春季学術講演会 2024/03/24
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進行波型超伝導増幅器の集積性向上に向けた高誘電率基板上窒化ニオブ薄膜のマイクロ波特性評価
沓間弘樹, 森俊祐, 小塚裕介, 大塚朋廣, 松浦康平, 山下太郎
2024年第71回 応用物理学会春季学術講演会 2024/03/22
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GaN FETにおけるマイクロ波共鳴ピークの解析
松村和真, 阿部峰也, 篠崎基矢, 相澤拓海, 熊坂武志, 大塚朋廣
日本物理学会2024春季大会 2024/03/21
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半導体量子デバイスの放射線に対する応答の研究
高草元, 岸本康宏, 吉田斉, 大塚朋廣
日本物理学会2024年春季大会 2024/03/21
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Semiconductor Qubits and New Materials Invited
Tomohiro Otsuka
UK-Japan-Swiss Workshop ‘Materials for Quantum Electronics 2024/02/28
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Improvement of Charge State Estimation in Quantum Dots by Machine Learning and Visualization of the Model by Grad-CAM
Yui Muto, Takumi Nakaso, Takumi Aizawa, Motoya Shinozaki, Takahito Kitada, Takashi Nakajima, Matthieu R. Delbecq, Jun Yoneda, Kenta Takeda, Akito Noiri, Arne Ludwig, Andreas D. Wieck, Seigo Tarucha, Atsunori Kanemura, Motoki Shiga, Tomohiro Otsuka
The 5th International Symposium on AI and Electronics 2024/02/20
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Wide dynamic range charge sensing utilizing fast feedback control of radio-frequency reflectometry
Motoya Shinozaki, Yoshihiro Fujiwara, Kazuma Matsumura, Kosuke Noro, Riku Tataka, Shoichi Sato, Takeshi Kumasaka, Tomohiro Otsuka
Symposium for the Core Research Clusters for Materials Science and Spintronics, and International Joint Graduate Program in Materials Science and Spintronics 2023/11/28
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Improving the generalization performance of the machine learning model estimating charge states in quantum dots
Yui Muto, Takumi Nakaso, Takumi Aizawa, Motoya Shinozaki, Takahito Kitada, Takashi Nakajima, Matthieu R. Delbecq, Jun Yoneda, Kenta Takeda, Akito Noiri, Arne Ludwig, Andreas D. Wieck, Seigo Tarucha, Atsunori Kanemura, Motoki Shiga, Tomohiro Otsuka
Symposium for the Core Research Clusters for Materials Science and Spintronics, and International Joint Graduate Program in Materials Science and Spintronics, 2023/11/28
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Transport Property of a Few Quantum Dots Formed in Short Channel GaN FETs
Kazuma Matsumura, Takaya Abe, Takahito Kitada, Takeshi Kumasaka, Norikazu Ito, Taketoshi Tanaka, Ken Nakahara, Tomohiro Otsuka
Symposium for the Core Research Clusters for Materials Science and Spintronics, and International Joint Graduate Program in Materials Science and Spintronics 2023/11/28
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Controllable fabrication of graphene nanoribbon-based quantum dot devices
Tatsuki Kato, Mizuki Seo, Takahito Kitada, Tomohiro Otsuka, Toshiaki Kato
Symposium for the Core Research Clusters for Materials Science and Spintronics, and International Joint Graduate Program in Materials Science and Spintronics 2023/11/28
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High-frequency measurement in graphene nanostructures for quantum devices
Tomoya Johmen, Motoya Shinozaki, Yoshihiro Fujiwara, Takumi Aizawa, Tomohiro Otsuka
Workshop on Quantum and Classical Cryogenic Devices, Circuits, and Systems, Superconducting SFQ VLSI Workshop, and International Workshop of Spin/Quantum Materials and Devices, 2023/11/17
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Automatic state recognition of quantum dot hardware utilizing machine learning
Yui Muto, Takumi Nakaso, Takumi Aizawa, Motoya Shinozaki, Takahito Kitada, Takashi Nakajima, Matthieu R. Delbecq, Jun Yoneda, Kenta Takeda, Akito Noiri, Arne Ludwig, Andreas D. Wieck, Seigo Tarucha, Atsunori Kanemura, Motoki Shiga, Tomohiro Otsuka
International Conference on Machine Learning Physics 2023/11/15
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単一コロイドPbS量子ドットトランジスタの電気伝導特性
柴田 憲治, 吉田政希, 平川一彦, 大塚朋廣, Bisri Satria, 岩佐義宏
応用物理学会 2023/09/21
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単一PbS量子ドットトランジスタの電気伝導特性
柴田 憲治, 吉田政希, 平川一彦, 大塚朋廣, Bisri Satria, 岩佐義宏
日本物理学会 2023/09/17
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短チャネルGaN FETにおける少数量子ドットの形成
松村和真, 阿部峰也, 北田孝仁, 熊坂武志, 伊藤範和, 田中岳利, 中原健, 大塚朋廣
日本物理学会 2023/09/17
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機械学習による量子ドット電荷状態推定の汎化性能改良
武藤由依, 中曽拓, 相澤拓海, 篠﨑基矢, 北田孝仁, 中島峻, Matthieu R. Delbecq, 米田淳, 武田健太, 野入亮人, Arne Ludwig, Andreas D. Wieck, 樽茶清悟, 兼村厚範, 志賀元紀, 大塚朋廣
日本物理学会 2023/09/17
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高周波反射測定の高速PID制御による電荷センサのダイナミックレンジ改善
篠﨑基矢, 藤原義弘, 松村和真, 野呂康介, 田髙陸, 佐藤彰一, 熊坂武志, 大塚朋廣
日本物理学会 2023/09/17
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Radio-frequency reflectometry measurement in bilayer graphene microdevices
Tomoya Johmen, Motoya Shinozaki, Yoshihiro Fujiwara, Riku Tataka, Takumi Aizawa, Takeshi Kumasaka, Tomohiro Otsuka
International Conference on Electronic Properties of Two-Dimensional Systems 2023/06/11
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Automatic charge state estimation in quantum dots by machine learning and visual explanation of the model with Grad-CAM
Yui Muto, Takumi Nakaso, Takumi Aizawa, Motoya Shinozaki, Takahito Kitada, Takashi Nakajima, Matthieu R. Delbecq, Jun Yoneda, Kenta Takeda, Akito Noiri, Arne Ludwig, Andreas D. Wieck, Seigo Tarucha, Atsunori Kanemura, Motoki Shiga, Tomohiro Otsuka
International Conference on Electronic Properties of Two-Dimensional Systems 2023/06/11
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Gate-tunable carrier transport through single PbS colloidal quantum dots
Kenji Shibata, Msasaki Yoshida, Kazuhiko Hirakawa, Tomohiro, Otsuka, Satria, Z. Bisri, Yoshihiro Iwasa
International Conference on Electronic Properties of Two-Dimensional Systems 2023/06/11
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Semiconductor spin qubits and new materials Invited
Tomohiro Otsuka
Workshop: Emerging Platforms for Quantum Computing 2023/04/10
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量子ドット電荷状態推定機械学習モデルの予測判断根拠可視化
武藤由依, 中曽拓, 相澤拓海, 篠﨑基矢, 北田孝仁, 中島峻, Matthieu R. Delbecq, 米田淳, 武田健太, 野入亮人, Arne Ludwig, Andreas D. Wieck, 樽茶清悟, 兼村厚範, 志賀元紀, 大塚朋廣
日本物理学会 2023/03/24
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ナノギャップ電極と結合した単一PbS量子ドットの電気伝導特性
吉田政希, 阿部真弓, 平川一彦, 大塚朋廣, Bisri Satria, 岩佐義宏, 柴田 憲治
応用物理学会 2023/03/18
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Quantum dots in new materials for quantum devices Invited
Tomohiro Otsuka
International Workshop of Spin/Quantum Materials and Devices, 2023/02/24
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Formation of quantum dots in MoS2 utilizing intrinsic Schottky barriers
Riku Tataka, Alka Sharma, Tomoya Johmen, Motoya Shinozaki, Takeshi Kumasaka, Yong P. Chen, Tomohiro Otsuka
Symposium for The Core Research Clusters for Materials Science and Spintronics, and International Joint Graduate Program in Materials Science 2022/10/25
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High-frequency measurement in bilayer graphene nanodevices
Tomoya Johmen, Motoya Shinozaki, Yoshihiro Fujiwara, Riku Tataka, Takumi Aizawa, Takeshi Kumasaka, Tomohiro Otsuka
Symposium for The Core Research Clusters for Materials Science and Spintronics, and International Joint Graduate Program in Materials Science, 2022/10/25
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Kondo Effects in ZnO Quantum Dots
Kosuke Noro, Takeshi Kumasaka, Yoshihiro Fujiwara, Yusuke Kozuka, Atsushi Tsukazaki, Masashi Kawasaki, Tomohiro Otsuka
Symposium for The Core Research Clusters for Materials Science and Spintronics, and International Joint Graduate Program in Materials Science, 2022/10/25
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Charge state recognition in double quantum dot devices by machine learning
Yui Muto, Takumi Nakaso, Takumi Aizawa, Motoya Shinozaki, Takahito Kitada, Takashi Nakajima, Matthieu R. Delbecq, Jun Yoneda, Kenta Takeda, Akito Noiri, Arne Ludwig, Andreas D. Wieck, Seigo Tarucha, Atsunori Kanemura, Tomohiro Otsuka
Yui Muto, Takumi Nakaso, Takumi Aizawa, Motoya Shinozaki, Takahito Kitada, Takashi Nakajima, Matthieu R. Delbecq, Jun Yoneda, Kenta Takeda, Akito Noiri, Arne Ludwig, Andreas D. Wieck, Seigo Tarucha, Atsunori Kanemura and Tomohiro Otsuka, 2022/10/25
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二層グラフェン微小デバイスにおける高周波反射測定
上面友也, 篠崎基矢, 熊坂武志, 藤原義弘, 田高陸, 相澤拓海, 大塚朋廣
日本物理学会 2022/09/13
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MoS2におけるコンタクト,ゲート電極の開発と量子ドット形成
田髙陸, Alka Sharma, 上面友也, 篠崎基矢, 熊坂武志, Yong P. Che, 大塚朋廣
日本物理学会 2022/09/13
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酸化亜鉛量子ドットの形成と近藤効果の観測
野呂康介, 熊坂武志, 藤原義弘, 小塚裕介, 塚﨑敦, 川﨑雅司, 大塚朋廣
日本物理学会 2022/09/13
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Noise robust recognition of charge states in quantum dots by machine learning and preprocessing
Yui Muto, Takumi Nakaso, Takumi Aizawa, Motoya Shinozaki, Takahito Kitada, Takashi Nakajima, Matthieu R. Delbecq, Jun Yoneda, Kenta Takeda, Akito Noiri, Arne Ludwig, Andreas D. Wieck, Seigo Tarucha, Atsunori Kanemura, Tomohiro Otsuka
International Conference on the Physics of Semiconductors 2022 2022/06/28
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ナノギャップ電極と結合したPbS量子ドットにおける電気伝導特性
柴田憲治, 齋藤光貴, 大塚 朋廣
応用物理学会 2022/03/23
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半導体量子ビット研究の最前線シンポジウム はじめに
大塚朋廣
日本物理学会 2022/03/18
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高周波反射測定による量子ドットQCA状態電荷遷移の実時間観測
相澤拓海, 篠﨑基矢, 藤原義弘, 熊坂武, 中島峻, Matthieu R. Delbecq, 米田淳, 武田健太, 野入亮人, Arne Ludwig, Andreas D. Wieck, 樽茶清悟, 大塚朋廣
日本物理学会 2022/03/16
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GaN FETの電流コラプス下における量子ドット形成
阿部峰也, 篠崎基矢, 相澤拓海, 熊坂武志, 伊藤範和, 田中岳利, 中原健, 大塚朋廣
日本物理学会 2022/03/16
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機械学習と前処理によるノイズ耐性のある量子ドット電荷状態推定
武藤由依, 中曽拓, 相澤拓海, 篠﨑基矢, 北田孝仁, 中島峻, Matthieu R. Delbecq, 米田淳, 武田健太, 野入亮人, Arne Ludwig, Andreas D. Wieck, 樽茶清悟, 兼村厚範, 大塚朋廣
日本物理学会 2022/03/16
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量子ポイントコンタクトの放射線応答
湯田秀明, 吉田斉, 大塚朋廣, 岸本康宏
日本物理学会 2022/03/16
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微細CoFeB/MgO磁気トンネル接合における非線形電子輸送特性
篠﨑基矢, 五十嵐純太, 岩切秀一, 北田孝仁, 早川佳祐, 陣内佛霖, 大塚朋廣, 深見俊輔
日本物理学会 2022/03/15
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Noise analysis of radio-frequency reflectometry for single spin and charge detection in quantum dots Invited
Tomohiro Otsuka, Motoya Shinozaki, Yui Muto, Takahito Kitada, Takashi Nakajima, Matthieu R. Delbecq, Jun Yoneda, Kenta Takeda, Akito Noiri, Takumi Ito, Arne Ludwig, Andreas D. Wieck, Seigo Tarucha
1st Online RIEC International Workshop on Spintronics 2021/11/18
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Quantum dots formed in GaN/AlGaN FETs and channel length dependence
Takaya Abe, Takahito Kitada, Norikazu Ito, Taketoshi Tanaka, Ken Nakahara, Tomohiro Otsuka
International Conference on Electronic Properties of Two-Dimensional Systems 2021/11/02
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Channel length dependence of the formation of quantum dots in GaN FETs
Takaya Abe, Takahito Kitada, Norikazu Ito, Taketoshi Tanaka, Ken Nakahara, Tomohiro Otsuka
Symposium for The Core Research Clusters for Materials Science and Spintronics, and International Joint Graduate Program in Materials Science 2021/10/27
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Error rate analysis of charge sensing in quantum dots by Bayesian approach
Motoya Shinozaki, Yui Muto, Takahito Kitada, Shuya Nagayasu, Takeshi Nakajima, Matthieu R. Delbecq, Jun Yoneda, Kenta Takeda, Akito Noiri, Sen Li, Takumi Ito, Seigo Tarucha, Tomohiro Otsuka
Symposium for The Core Research Clusters for Materials Science and Spintronics, and International Joint Graduate Program in Materials Science 2021/10/27
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Improving low temperature contact resistance of 2D semiconductors using semimetal
Alka Sharma, Tomohiro Otsuka, Yong P. Chen
Symposium for The Core Research Clusters for Materials Science and Spintronics, and International Joint Graduate Program in Materials Science 2021/10/25
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GaN FETにおけるマイクロ波依存伝導の観測
阿部峰也, 篠崎基矢, 相澤拓海, 熊坂武志, 伊藤範和, 田中岳利, 中原健, 大塚朋廣
日本物理学会 2021/09/21
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電荷検出器への応用に向けた金属ナノ接合の微細化と伝導特性制御
柴田 憲治, 佐々木 尚人, 斉藤 大我, 大塚 朋廣, 平川 一彦
応用物理学会 2021/03/16
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CVDグラフェンナノリボンにおける単一量子ドット形成
北田孝仁, 阿部峰也, 瀬尾瑞樹, 佐藤尚郁, 篠﨑基矢, 相澤拓海, 武藤由依, 金子俊郎, 加藤俊顕, 大塚朋廣
日本物理学会 2021/03/15
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GaN FET中量子ドット形成のチャネル長依存性
阿部峰也, 北田孝仁, 伊藤範和, 田中岳利, 中原健, 大塚朋廣
日本物理学会 2021/03/13
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半導体量子ドットを用いた電子スピン状態の測定と制御 Invited
大塚朋廣
日本物理学会 2021/03/12
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Readout noise in radio-frequency reflectometry in gallium arsenide quantum dots
Motoya Shinozaki, Yui Muto, Takahito Kitada, Takashi Nakajima, Matthieu R. Delbecq, Jun Yoneda, Kenta Takeda, Akito Noiri, Takumi Ito, Arne Ludwig, Andreas D. Wieck, Seigo Tarucha, Tomohiro Otsuka
International Symposium for The Core Research Clusters for Materials Science and Spintronics 2021/02/24
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Charge state estimation in quantum dots by Bayesian approach
Yui Muto, Motoya Shinozaki, Takahito Kitada, Shuya Nagayasu, Takashi Nakajima, Matthieu R. Delbecq, Jun Yoneda, Kenta Takeda, Akito Noiri, Sen Li, Takumi Ito, Seigo Tarucha, Tomohiro Otsuka
International Symposium for The Core Research Clusters for Materials Science and Spintronics 2021/02/24
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Quantum Dots in plasma CVD Graphene Nanoribbons
Takahito Kitada, Mizuki Seo, Takaya Abe, Motoya Shinozaki, Naohumi Sato, Takumi Aizawa, Yui Muto, Toshiro Kaneko, Toshiaki Kato, Tomohiro Otsuka
International Symposium for The Core Research Clusters for Materials Science and Spintronics 2021/02/24
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CVDグラフェンナノリボンにおける量子ドット形成
北田孝仁, 阿部峰也, 篠﨑基矢, 瀬尾瑞樹, 金子俊郎, 加藤俊顕, 大塚朋廣
日本物理学会 2020/09/11
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機械学習による量子ドットの電荷状態推定
中曽拓, 篠﨑基矢, 相澤拓海, 北田孝仁, 武藤由依, 中島峻, Matthieu R. Delbecq, 米田淳, 武田健, 野入亮人, 伊藤匠, Arne Ludwig, Andreas D. Wieck, 樽茶清悟, 兼村厚範, 大塚朋廣
日本物理学会 2020/09/09
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量子ドット高周波反射測定のノイズ解析
篠﨑基矢, 武藤由依, 北田孝仁, 中島峻, Matthieu R. Delbecq, 米田淳, 武田健太, 野入亮人, 伊藤匠, Arne Ludwig, Andreas D. Wieck, 樽茶清悟, 大塚朋廣
日本物理学会 2020/09/09
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ベイズ手法による量子ドット電荷状態推定のノイズ依存性
武藤由依, 篠﨑基矢, 北田孝仁, 永安修也, 中島峻, Matthieu R. Delbecq, 米田淳, 武田健太, 野入亮人, Sen Li, 伊藤匠, 樽茶清悟, 大塚朋廣
日本物理学会 2020/09/09
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半導体微細構造を用いた量子デバイス Invited
大塚朋廣
東京大学物性研究所ワークショップ 「ナノスケール物性科学の最先端と新展開」 2020/07/22
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CVDグラフェンナノリボンの電気伝導特性測定
北田孝仁, 阿部峰也, 瀬尾瑞樹, 金子俊郎, 加藤俊顕, 大塚朋廣
日本物理学会 2020/04/01
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GaN FET中量子ドット形成の絶縁膜依存性
阿部峰也, 北田孝仁, 伊藤範和, 田中岳利, 中原健, 大塚朋廣
日本物理学会 2020/04/01
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Measurement and Control of Single-electron Spins by Utilizing Semiconductor Quantum Dot Invited
Tomohiro Otsuka, Takashi Nakajima, Matthieu R. Delbecq, Peter Stano, Shinichi Amaha, Jun Yoneda, Kenta Takeda, Giles Allison, Sen Li, Akito Noiri, Takumi Ito, Daniel Loss, Arne Ludwig, Andreas D. Wieck, Seigo Tarucha
Symposium for The Core Research Clusters for Materials Science and Spintronics 2020/02/10
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Quantum dots formed in GaN FETs
Takaya Abe, Takahito Kitada, Norikazu Ito, Taketoshi Tanaka, Ken Nakahara, Tomohiro Otsuka
Symposium for The Core Research Clusters for Materials Science and Spintronics 2020/02/10
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Spin and Charge Dynamics in Nanostructures Probed by Quantum Dot Sensors
Tomohiro Otsuka, Takashi Nakajima, Matthieu R. Delbecq, Peter Stano, Shinichi Amaha, Jun Yoneda, Kenta Takeda, Giles Allison, Sen Li, Akito Noiri, Takumi Ito, Daniel Loss, Arne Ludwig, Andreas D. Wieck, Seigo Tarucha
New Perspective in Spin Conversion Science 2020/02/03
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Spin Dynamics in Nanostructures Probed by Quantum Dot Sensors
Tomohiro Otsuka, Takashi Nakajima, Matthieu R. Delbecq, Peter Stano, Shinichi Amaha, Jun Yoneda, Kenta Takeda, Giles Allison, Sen Li, Akito Noiri, Takumi Ito, Daniel Loss, Arne Ludwig, Andreas D. Wieck, Seigo Tarucha
Materials Research Meeting 2019 2019/12/11
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Speed up of quantum dot sensors utilizing Bayesian estimation
Tomohiro Otsuka, Shuya Nagayasu, Takashi Nakajima, Matthieu R. Delbecq, Jun Yoneda, Kenta Takeda, Akito Noiri, Sen Li, Takumi Ito, Seigo Tarucha
International Symposium on Materials Informatics 2019/02/10
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Probing Spin Dynamics in Nanostructures Utilizing Quantum Dot Sensors
Tomohiro Otsuka, Takashi Nakajima, Matthieu R. Delbecq, Peter Stano, Shinichi Amaha, Jun Yoneda, Kenta Takeda, Giles Allison, Sen Li, Akito Noiri, Takumi Ito, Daniel Loss, Arne Ludwig, Andreas D. Wieck, Seigo Tarucha
2018/11/22
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Charge and Spin Dynamics in a Quantum Dot-Lead Hybrid System Invited
Tomohiro Otsuka, Takashi Nakajima, Matthieu R. Delbecq, Peter Stano, Shinichi Amaha, Jun Yoneda, Kenta Takeda, Giles Allison, Sen Li, Akito Noiri, Takumi Ito, Daniel Loss, Arne Ludwig, Andreas D. Wieck, Seigo Tarucha
International Symposium on Frontiers of Quantum Transport in Nano Science 2018/11/09
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Speed up of quantum dot charge sensing utilizing Bayesian estimation International-presentation
Tomohiro Otsuka, Shuya Nagayasu, Takashi Nakajima, Matthieu R. Delbecq, Jun Yoneda, Kenta Takeda, Akito Noiri, Sen Li, Takumi Ito, Seigo Tarucha
International Conference on the Physics of Semiconductors 2018/07/30
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Different charge and spin dynamics in a quantum dot-lead coupled system International-presentation
Tomohiro Otsuka, Takashi Nakajima, Matthieu R. Delbecq, Peter Stano, Shinichi Amaha, Jun Yoneda, Kenta Takeda, Giles Allison, Akito Noiri, Takumi Ito, Daniel Loss, Arne Ludwig, Andreas D. Wieck, Seigo Tarucha
International Symposium on Dynamics in Artificial Quantum Systems 2018/01/15
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Probing Dynamics of Local Electronic States in Nanostructures Utilizing Fast Quantum Dot Probes International-presentation
Tomohiro Otsuka, Takashi Nakajima, Matthieu R. Delbecq, Shinichi Amaha, Jun Yoneda, Kenta Takeda, Giles Allison, Peter Stano, Akito Noiri, Takumi Ito, Daniel Loss, Arne Ludwig, Andreas D. Wieck, Seigo Tarucha
International Symposium on Fluctuation and Structure out of Equilibrium 2017/11/21
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Four Single-spin Rabi Oscillations in a Quadruple Quantum Dot International-presentation
Takumi Ito, Tomohiro Otsuka, Takashi Nakajima, Matthieu R. Delbecq, Shinichi Amaha, Jun Yoneda, Kenta Takeda, Akito Noiri, Giles Allison, Arne Ludwig, Andreas D. Wieck, Seigo Tarucha
International Conference on Electronic Properties of Two Dimensional Systems 2017/08/03
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Difference in Charge and Spin Dynamics in a Quantum Dot-Lead Hybrid System International-presentation
Tomohiro Otsuka, Takashi Nakajima, Matthieu R. Delbecq, Peter Stano, Shinichi Amaha, Jun Yoneda, Kenta Takeda, Giles Allison, Akito Noiri, Takumi Ito, Daniel Loss, Arne Ludwig, Andreas D. Wieck, Seigo Tarucha
International Conference on Electronic Properties of Two Dimensional Systems 2017/08/01
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Fast Local Electronic Probes utilizing Quantum Dots for Fluctuation Measurement in Nanodevices
Tomohiro Otsuka, Shinichi Amaha, Takashi Nakajima, Matthieu R. Delbecq, Jun Yoneda, Kenta Takeda, Retsu Sugawara, Arne Ludwig, Andreas D. Wieck, Seigo Tarucha
新学術領域「ゆらぎと構造」第3回領域研究会 2016/06/17
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AC Stark effect and optimal control of a strongly driven Si/SiGe quantum dot spin qubit International-presentation
K. Takeda, J. Kamioka, J. Yoneda, T. Otsuka, M. R. Delbecq, G. Allison, T. Nakajima, T. Kodera, S. Oda, S. Tarucha
Silicon Quantum Electronics Workshop 2016/06
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Multiplexed reflectometry measurement of a gate-defined Si-MOS quantum dot International-presentation
J. Yoneda, T. Honda, K. Takeda, M. Marx, T. Otsuka, T. Nakajima, M. R. Delbecq, S. Amaha, G. Allison, T. Kodera, S. Oda, S. Tarucha
Silicon Quantum Electronics Workshop 2016/06
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Measurement of charge states in Si/SiGe multiple quantum dots International-presentation
T. Otsuka, K. Takeda, J. Yoneda, T. Honda, M. R. Delbecq, G. Allison, M. Marx, T. Nakajima, T. Kodera, S. Oda, Y. Hoshi, N. Usami, K. M. Itoh, S. Tarucha
Silicon Quantum Electronics Workshop 2016/06
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Measurement of spin relaxation in semiconductor quantum dots coupled to electric leads
Tomohiro Otsuka, Takashi Nakajima, Matthieu R. Delbecq, Shinichi Amaha, Jun Yoneda, Kenta Takeda, Giles Allison, Akito Noiri, Takumi Ito, Arne Ludwig, Andreas D. Wieck, Seigo Tarucha
ImPACT量子情報技術ワークショップ 2016/03/29
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Hybrid cQED architecture as a model system for non-equilibrium physics in condensed matter
Matthieu R. Delbecq, Giles Allison, Takashi Nakajima, Jun Yoneda, Kenta Takeda, Marian Marx, Tomohiro Otsuka, Shinich Amaha, Seigo Tarucha
ImPACT量子情報技術ワークショップ 2016/03/29
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三重量子ドットにおける準安定電荷状態を利用したスピン・電荷変換
中島峻, Matthieu R. Delbecq, 大塚朋廣, 天羽真一, 米田淳, 野入亮人, 武田健太, Giles Allison、Arne Ludwig, Andreas D. Wieck, 樽茶清悟
日本物理学会 2016/03/19
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三重量子ドット電子スピン共鳴における局所磁場差と交換相互作用の競合
米田淳, 野入亮人, 中島峻, 大塚朋廣, M. Delbecq, 天羽真一, Arne Ludwig, Andreas D. Wieck, 樽茶清悟
日本物理学会 2016/03/19
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電極と結合した量子ドットにおけるスピン緩和測定
大塚朋廣, 中島峻, Matthieu R. Delbecq, 天羽真一, 米田淳, 武田健太, Giles Allison, 野入亮人, 伊藤匠, Arne Ludwig, Andreas D. Wieck, 樽茶清悟
日本物理学会 2016/03/19
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Measurement of charge states in multiple quantum dots utilizing multiplexed fast charge sensors
Takumi Ito, Tomohiro Otsuka, Shinichi Amaha, Matthieu R. Delbecq, Jun Yoneda, Kenta Takeda, Akito Noiri, Takashi Nakajima, Seigo Tarucha
東京大学低温センター研究交流会 2016/02/23
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Coherent electron-spin-resonance control of three individual spins in a triple quantum dot International-presentation
A. Noiri, J. Yoneda, T. Nakajima, T. Otsuka, M. R. Delbecq, K. Takeda, S. Amaha, G. Allison, A. Ludwig, A. D. Wieck, S. Tarucha
International Symposium on Dynamics in Artificial Quantum Systems 2016/01/14
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Hybrid cQED architecture as a model system for non-equilibrium physics in condensed matter International-presentation
G. Allison, M. R. Delbecq, N. Lambert, T. Nakajima, J. Yoneda, K. Takeda, M. Marx, T. Otsuka, S. Amaha, F. Nori, S. Tarucha
International Symposium on Dynamics in Artificial Quantum Systems 2016/01/13
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Bayesian estimation of nuclear-spin bath for adaptive feedback with a single-electron spin qubit International-presentation
K. Kawasaki, T. Nakajima, J. Yoneda, M. R. Delbecq, S. Amaha, T. Otsuka, K. Takeda, S. Tarucha
International Symposium on Dynamics in Artificial Quantum Systems 2016/01/13
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Controlling entanglement of spin qubits in a triple quantum dot International-presentation
T. Nakajima, M. R. Delbecq, T. Otsuka, S. Amaha, J. Yoneda, A. Noiri, K. Takeda, G. Allison, A. Ludwig, A. D. Wieck, S. Tarucha
International Symposium on Dynamics in Artificial Quantum Systems 2016/01/13
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Electron spin resonance in a quadruple quantum dot International-presentation
T. Otsuka, T. Nakajima, M. R. Delbecq, S. Amaha, J. Yoneda, K. Takeda, A. Noiri, R. Sugawara, A. Ludwig, A. D. Wieck, S. Tarucha
International Symposium on Dynamics in Artificial Quantum Systems 2016/01/13
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A fast addressable spin qubit in a silicon quantum dot International-presentation
K. Takeda, J. Kamioka, T. Otsuka, J. Yoneda, T. Nakajima, M. R. Delbecq, S. Amaha, G. Allison, A. Noiri, R. Sugawara, T. Kodera, S. Oda, S. Tarucha
International Symposium on Dynamics in Artificial Quantum Systems 2016/01/13
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Exploiting the slow dynamics of nuclear spins to enhance the coherence time of spin qubits in GaAs International-presentation
M. R. Delbecq, T. Nakajima, P. Stano, T. Otsuka, S. Amaha, J. Yoneda, K. Takeda, G. Allison, A. Ludwig, A. D. Wieck, S. Tarucha
International Symposium on Nanoscale Transport and Technology 2015/11/20
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Generation of locally and non-locally entangled electron spin pairs in a triple quantum dot International-presentation Invited
T. Nakajima, M. R. Delbecq, T. Otsuka, S. Amaha, J. Yoneda, A. Noiri, K. Takeda, A. Ludwig, A. D. Wieck, S. Tarucha
International Workshop : Quantum Nanostructures and Electron-Nuclear Spin Interactions 2015/10/20
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半導体量子ドットを用いたスピンキュービット実験 Invited
大塚朋廣, 中島峻, M. Delbecq, 天羽真一, 米田淳, 武田健太, 野入亮人, 菅原烈, 伊藤匠, 川崎賢人, H. Lu, B, Shojaei、C. Palmstrom、A. Gossard, J. Watson, M. Manfra、A. Ludwig, A. Wieck, 樽茶清悟
第4回関西若手物性研究会 2015/10/17
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三角形型三重量子ドットの電荷輸送特性
川崎賢人, 野入亮人, 天羽真一, 大塚朋廣, 中島峻, 米田淳, M. Delbecq, 武田健太, 樽茶清悟
日本物理学会 2015/09/17
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四重量子ドットにおける単一電子スピン共鳴
大塚朋廣, 中島峻, Matthieu Delbecq, 天羽真一, 米田淳, 武田健太, 野入亮人, 菅原烈, Giles Allison、Arne Ludwig, Andreas Wieck, 樽茶清悟
日本物理学会 2015/09/16
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高速複数電荷計を用いた多重量子ドット電荷状態の観測
伊藤匠, 大塚朋廣, 天羽真一, 中島峻, Matthieu Delbecq, 米田淳, 武田健太, Giles Allison, 野入亮人, 樽茶清悟
日本物理学会 2015/09/16
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電極閉じ込め型シリコンMOS量子ドットの作製と評価
米田淳, 本田拓夢, 武田健太, Marian Marx, 大塚朋廣, 中島峻, Matthieu Delbecq, 天羽真一, Giles Allison, 小寺哲夫, 小田俊理, 樽茶清悟
日本物理学会 2015/09/16
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Si2重量子ドット中の電子スピンの高速独立操作
武田健太, 神岡純, 小幡利顕, 大塚朋廣, 中島峻, Matthieu Delbecq, 天羽真一, 米田淳, Giles Alison, 野入亮人, 菅原烈, 小寺哲夫, 小田俊理, 樽茶清悟
日本物理学会 2015/09/16
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三重量子ドットにおける非隣接スピンもつれ状態の形成と観測
中島峻, Matthieu R. Delbecq, 大塚朋廣, 天羽真一, 米田淳, 野入亮人, 武田健太, Arne Ludwig, Andreas D. Wieck, 樽茶清悟
日本物理学会 2015/09/16
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Coherence of spin qubits measured faster than the decorrelation time of their environmental noise
Matthieu R. Delbecq, Takashi Nakajima, Tomohiro Otsuka, Shinichi Amaha, Jun Yoneda, Akito Noiri, Arne Ludwig, Andreas D. Wieck, Seigo Tarucha
半導体量子効果と量子情報の夏期研修会 2015/09/11
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A fast addressable single-spin qubit in a Si/SiGe double quantum dot with a micromagnet
Kenta Takeda, Jun Kamioka, Toshiaki Obata, Tomohiro Otsuka, Takashi Nakajima, Matthieu R. Delbecq, Shinichi Amaha, Jun Yoneda, Giles Allison, Akito Noiri, Retsu Sugawara, Tetsuo Kodera, Syunri Oda, Seigo Tarucha
半導体量子効果と量子情報の夏期研修会 2015/09/11
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A tunnel-coupled triangular triple quantum dot
Akito Noiri, Kento Kawasaki, Shinichi Amaha, Tomohiro Otsuka, Takashi Nakajima, Jun Yoneda, Matthieu R. Delbecq, Kenta Takeda, Seigo Tarucha
半導体量子効果と量子情報の夏期研修会 2015/09/11
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cQED incorporating SiGe quantum dots
Giles Allison, Matthieu R. Delbecq, Takashi Nakajima, Jun Yoneda, Kenta Takeda, Marian Marx, Tomohiro Otsuka, Shinich Amaha, Seigo Tarucha
半導体量子効果と量子情報の夏期研修会 2015/09/11
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Electrical characterization of silicon metel-oxide-semiconductor-based quantum dots
Jun Yoneda, Takumu Honda, Kenta Takeda, Marian Marx, Tomohiro Otsuka, Takashi Nakajima, Matthieu R. Delbecq, Shinichi Amaha, Giles Allison, Tetsuo Kodera, Syunri Oda, Seigo Tarucha
半導体量子効果と量子情報の夏期研修会 2015/09/11
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Enhancement of coherent time of a spin qubit by fast feedback in nuclear spin bath fluctuation
Kento Kawasaki, Takashi Nakajima, Jun Yoneda, Matthieu R. Delbecq, Shinichi Amaha, Tomohiro Otsuka, Kenta Takeda, Seigo Tarutya
半導体量子効果と量子情報の夏期研修会 2015/09/11
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Increasing valley-splitting in Si/SiGe quantum dots
Marian Marx, Jun Yoneda, Giles Allison, Matthieu R. Delbecq, Takumu Honda, Tomohiro Otsuka, Kenta Takeda, Shinichi Amaha, Takashi Nakajima, Retsu Sugawara, Seigo Tarucha
半導体量子効果と量子情報の夏期研修会 2015/09/11
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Probing spin states in a triple quantum dot by Fourier transform spectroscopy International-presentation
T. Nakajima, M. R. Delbecq, T. Otsuka, S. Amaha, J. Yoneda, A. Noiri, K. Takeda, A. Ludwig, A. D. Wieck, S. Tarucha
SpinTech VIII 2015/08/12
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A strongly driven single-spin qubit in a Si/SiGe double quantum dot with a micro-magnet International-presentation
K. Takeda, J. Kamioka, T. Obata, T. Otsuka, T. Nakajima, M. R. Delbecq, S. Amaha, J. Yoneda, A. Noiri, R. Sugawara, T. Kodera, S. Oda, S. Tarucha
SpinTech VIII 2015/08/12
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Implementation of three spin qubits in a lateral triple quantum dot International-presentation
A. Noiri, T. Nakajima, J. Yoneda, M. R. Delbecq, T. Otsuka, S. Amaha, K. Takeda, A. Ludwig, A. D. Wieck, S. Tarucha
SpinTech VIII 2015/08/11
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A fast addressable single-spin qubit in a Si/SiGe double quantum dot with a micro-magnet International-presentation
K. Takeda, J. Kamioka, T. Obata, T. Otsuka, T. Nakajima, M. R. Delbecq, S. Amaha, J. Yoneda, G. Allison, A. Noiri, R. Sugawara, T. Kodera, S. Oda, S. Tarucha
Silicon Quantum Electronics Workshop 2015 2015/08/04
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Improved design and fabrication for Si/SiGe quantum dots with increased valley-splitting International-presentation
M. Marx, K. Takeda, J. Yoneda, G. Allison, T. Honda, M. R. Delbecq, T. Otsuka, T. Nakajima, S. Amaha, T. Kodera, S. Oda, S. Tarucha
Silicon Quantum Electronics Workshop 2015 2015/08/03
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Fabrication and characterization of gate-defined small Si-MOS quantum dot devices International-presentation
J. Yoneda, T. Honda, K. Takeda, M. Marx, T. Otsuka, T. Nakajima, M. R. Delbecq, S. Amaha, G. Allison, T. Kodera, S. Oda, S. Tarucha
Silicon Quantum Electronics Workshop 2015 2015/08/03
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Enhanced coherence time of spin qubits in GaAs and dynamics of the nuclear spin bath International-presentation
M. R. Delbecq, T. Nakajima, T. Otsuka, S. Amaha, J. Yoneda, A. Noiri, A. Ludwig, A. D. Wieck, S. Tarucha
International Conference on Electronic Properties of Two-Dimensional Systems 2015/07/28
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Realization of a Fast Single-lead Quantum Dot Probe and Evaluation of the Properties by Probing Quantum Dot States International-presentation
T. Otsuka, S. Amaha, T. Nakajima, M. R. Delbecq, J. Yoneda, K. Takeda, R. Sugawara, A. Ludwig, A. D. Wieck, S. Tarucha
International Conference on Electronic Properties of Two-Dimensional Systems 2015/07/28
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Electrically Pulsed Fourier Transform Spectroscopy of Coupled Electron Spins in Triple Quantum Dot International-presentation
T. Nakajima, M. R. Delbecq, T. Otsuka, S. Amaha, J. Yoneda, A. Noiri, K. Takeda, A. Ludwig, A. D. Wieck, S. Tarucha
International Conference on Electronic Properties of Two-Dimensional Systems 2015/07/28
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Boosting single electron spin flips in quantum dots International-presentation
T. Ito, J. Yoneda, K. Takeda, A. Noiri, T. Otsuka, T. Nakajima, M. R. Delbecq, S. Amaha, S. Tarucha
International Conference on Modulated Semiconductor Structures 2015/07/27
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A tunnel-coupled triangular triple quantum dot International-presentation
A. Noiri, K. Kawasaki, S. Amaha, T. Otsuka, T. Nakajima, J. Yoneda, M. R. Delbecq, K. Takeda, S. Tarucha
International Conference on Electronic Properties of Two-Dimensional Systems 2015/07/27
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Single-electron Spin Resonance in a Quadruple Quantum Dot International-presentation
T. Otsuka, T. Nakajima, M. R. Delbecq, S. Amaha, J. Yoneda, K. Takeda, A. Noiri, R. Sugawara, A. Ludwig, A. D. Wieck, S. Tarucha
International Conference on Electronic Properties of Two-Dimensional Systems 2015/07/27
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Exploring multiple quantum dots circuits charge stability diagrams
Matthieu Delbecq, Takashi Nakajima, Tomohiro Otsuka, Shinichi Amaha, Jun Yoneda, John Watson, Michael Manfra, Seigo Tarucha
日本物理学会 2015/03/23
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シングルリード量子ドットプローブの高速化と量子ドット状態測定による性能評価
大塚朋廣, 天羽真一, 中島峻, DELBECQ M, 米田淳, 武田健太, 菅原烈, LUDWIG Arne, WIECK Andreas, 樽茶清悟
日本物理学会 2015/03/23
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3重量子ドットを用いた3スピン量子ビットの共鳴周波数・ラビ振動数の特性
野入亮人, 米田淳, 中島峻, 大塚朋廣, Matthieu Delbecq, 天羽真一, Arne Ludwig, Andreas Wieck, 樽茶清悟
日本物理学会 2015/03/23
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電子スピン共鳴によるSi量子ドット中のスピン・バレー状態の考察
武田健太, 神岡純, 小幡利顕, 大塚朋廣, 中島峻, DELBECQ M.R, 天羽真一, 米田淳, 野入亮人, 菅原烈, 小寺哲夫, 小寺哲夫, 小寺哲夫, 小田俊理, 樽茶清悟
日本物理学会 2015/03/23
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三重量子ドットにおけるスピン量子ビット実験の忠実度向上
中島峻, DELBECQ M.R, 大塚朋廣, 天羽真一, 米田淳, 野入亮人, 武田健太, LUDWIG Arne, WIECK Andreas D, 樽茶清悟
日本物理学会 2015/03/23
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アルミナ絶縁層を用いた傾斜磁場ESR法の改善
伊藤匠, 野入亮人, 米田淳, 米田淳, 中島峻, 中島峻, 大塚朋廣, 大塚朋廣, 天羽真一, 樽茶清悟, 樽茶清悟
日本物理学会 2015/03/23
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Boosting single electron spin flips in quantum dots by device engineering
伊藤匠, 野入亮人, 米田淳, 中島峻, 大塚朋廣, 天羽真一, 樽茶清悟
MERIT自主キャンプ 2015/03/10
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Implementation of three spin qubits in a lateral triple quantum dot International-presentation
A. Noiri, T. Nakajima, J. Yoneda, M. Delbecq, T. Otsuka, S. Amaha, A. Ludwig, A. D. Wieck, S. Tarucha
International Workshop on Topological Electronics 2015/03/09
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Single-electron spin resonance in a Si/SiGe double quantum dot with a micromagnet International-presentation
K. Takeda, J. Kamioka, T. Obata, T. Otsuka, T. Nakajima, M. Delbecq, S. Amaha, J. Yoneda, A. Noiri, R. Sugawara, T. Kodera, S. Oda, S. Tarucha
American Physical Society March Meeting 2015/03/05
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Addressable single-spin control in multiple quantum dots coupled in series International-presentation Invited
T. Nakajima, M. R. Delbeq, T. Otsuka, S. Amaha, J. Yoneda, A. Noiri, A. D. Wieck, S. Tarucha
American Physical Society March Meeting 2015/03/04
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Vanishing Influence from Nuclear Spins on Strongly Driven Single Electron Spins in Quantum Dots International-presentation
J. Yoneda, T. Otsuka, T. Nakajima, T. Takakura, T. Obata, M.l Pioro-Ladriere, H. Lu, C. Palmstrom, A. C. Gossard, S. Tarucha, ual, contri
International Symposium on Quantum System and Nuclear Spin Related Phenomena 2015/02/19
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Increase by several orders of magnitude of the spin coherence time in GaAs by fast measurements International-presentation
M. R. Delbecq, T. Nakajima, T. Otsuka, S. Amaha, J. Yoneda, A. Noiri, A. Ludwig, A. D. Wieck, S. Tarucha
International Symposium on Quantum System and Nuclear Spin Related Phenomena 2015/02/19
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超高速量子ドットプローブを用いた半導体微細構造中の局所電子状態のダイナミクスの研究
大塚朋廣, 天羽真一, 中島峻, Matthieu Delbecq, 米田淳, 武田健太, 菅原烈, Arne Ludwig, Andreas Wieck, 樽茶清悟
理研奨励ファンド成果報告会 2015/01/14
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Addressable Control of Three Spin Qubits in Semiconductor Triple Quantum Dot International-presentation
M. R. Delbeq, T. Nakajima, T. Otsuka, S. Amaha, J. Yoneda, A. Noiri, A. D. Wieck, S. Tarucha
Workshop on Innovative Nanoscale Devices and Systems 2014/12/01
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Experimental Study of Spin Qubits in Triple Quantum Dot
Tomohiro Otsuka, Takashi Nakajima, Matthieu R. Delbecq, Shinich Amaha, Jun Yoneda, Kenta Takeda, Akito Noiri, Retsu Sugawara, Seigo Tarucha
半導体量子効果と量子情報の夏期研修会 2014/09/13
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Fabrication of silicon quantum devices with the goal of the implementation of a Triple Quantum Dot
Marian Marx, Jun Yoneda, Giles Allison, Matthieu R. Delbecq, Takumu Honda, Tomohiro Otsuka, Kenta Takeda, Shinichi Amaha, Takashi Nakajima, Retsu Sugawara, Seigo Tarucha
半導体量子効果と量子情報の夏期研修会 2014/09/12
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Implementation of three spin qubits in a lateral triple quantum dot
Akito Noiri, Jun Yoneda, Takashi Nakajima, Tomohiro Otsuka, Shinichi Amaha, Matthieu R. Delbecq, Andreas D. Wieck, Seigo Tarucha
半導体量子効果と量子情報の夏期研修会 2014/09/12
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Vertically and Laterally Coupled Quadruple Quantum Dot
Shinich Amaha, Matthieu R. Delbecq, Takashi Nakajima, Tomohiro Otsuka, Jun Yoneda, Keiji Ono, Tsuyoshi Hatano, Seigo Tarucha
半導体量子効果と量子情報の夏期研修会 2014/09/12
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Full Control of a Quadruple Quantum Dot Circuit Charge States in the Single Electron Regime
Matthieu R. Delbecq, Takashi Nakajima, Tomohiro Otsuka, Shinichi Amaha, John D. Watson, Michael J. Manfra, Seigo Tarucha
半導体量子効果と量子情報の夏期研修会 2014/09/11
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微小磁石を備えたSi/SiGe2重量子ドットにおける単一電子スピン共鳴
武田健太, 神岡純, 小幡利顕, 大塚朋廣, 中島峻, DELBECQ M, 天羽真一, 米田淳, 野入亮人, 菅原烈, 小寺哲夫, 小田俊理, 樽茶清悟
日本物理学会 2014/09/08
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三重量子ドットを用いたスピン・キュービット実験 II
中島峻, 大塚朋廣, DELBECQ Matthieu, 天羽真一, 米田淳, 野入亮人, 武田健太, 菅原烈, 樽茶清悟
日本物理学会 2014/09/08
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三重量子ドットを用いたスピン・キュービット実験 I
大塚朋廣, 中島峻, DELBECQ M, 天羽真一, 米田淳, 野入亮人, 武田健太, 菅原烈, 樽茶清悟
日本物理学会 2014/09/08
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Full control of quadruple quantum dot circuit charge states in the single electron regime International-presentation
M. R. Delbecq, T. Nakajima, T. Otsuka, S. Amaha, J. D. Watson, M. J. Manfra, S. Tarucha
International Conference on The Physics of Semiconductors 2014/08/13
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Addressable control of single spin qubits in lateral triple quantum dot International-presentation
T. Nakajima, M. R. Delbeq, T. Otsuka, S. Amaha, J. Yoneda, A. Noiri, A. D. Wieck, S. Tarucha
International Conference on Low Temperature Physics 2014/08/08
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縦横結合4重量子ドットの電気伝導特性
天羽真一, M. Delbecq, 中島峻, 大塚朋廣, 大野圭司, D. G. Austing, 羽田野剛司, 樽茶清悟
日本物理学会 2014/03/29
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Fast Single Spin Operation in Semiconductor Quantum Dots International-presentation
T. Otsuka, J. Yoneda, T. Nakajima, T. Takakura, K. Yoshida, T. Obata, S. Tarucha, ual, contri
FIRST International Symposium on Topological Quantum Technology 2014/01/29
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Scaling-up Spin Qubits in Semiconductor Quantum Dots International-presentation
T. Nakajima, T. Otsuka, M. R. Delbeq, S. Amaha, J. Yoneda, A. Noiri, K. Takeda, J. Kamioka, R. Sugawara, J. Watson, M. J. Manfra, A. D. Wieck, S. Tarucha
FIRST International Symposium on Topological Quantum Technology 2014/01/29
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Fast Single Spin Operation in Semiconductor Quantum Dots
Tomohiro Otsuka, Jun Yoneda, Takashi Nakajima, Tatsuki Takakura, Katsuharu Yoshida, Toshiaki Obata, Seigo Tarucha
Emergent Matter Science Research Facility Work Shop 2013/12/20
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Fast Single Spin Operation in Semiconductor Quantum Dots
Tomohiro Otsuka, Jun Yoneda, Takashi Nakajima, Tatsuki Takakura, Katsuharu Yoshida, Toshiaki Obata, Seigo Tarucha, ual contributi
量子サイバネティクス全体会議 2013/12/16
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Single-step Z Rotation of a Single Spin Qubit in a Semiconductor Quantum Dot
Jun Yoneda, Tomohiro Otsuka, Takashi Nakajima, Tatsuki Takakura, Katsuharu Yoshida, Toshiaki Obata, S. Tarucha, ual, contri
量子情報処理プロジェクト全体会議 2013/12
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Scale-up of spin qubits in semiconductor quantum dots
Tomohiro Otsuka, Takashi Nakajima, Matthieu R. Delbeq, Shinichi Amaha, Jun Yoneda, Kenta Takeda, Akito Noiri, Jun Kamioka, Retsu Sugawara, John Watson, Michael J. Manfra, Hong Lu, Borzoyeh Shojaei, Christopher Palmstrøm, Arthur Gossard, S. Tarucha
量子情報処理プロジェクト全体会議 2013/12
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単一電子スピン量子ビットの位相ゲート
米田淳, 大塚朋廣, 中島峻, 高倉樹, 小幡利顕, 樽茶清悟
日本物理学会 2013/09/27
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3端子3重量子ドットにおけるパウリスピンブロッケード
野入亮人, 高倉樹, 小幡利顕, 大塚朋廣, 中島峻, 米田淳, 樽茶清悟
日本物理学会 2013/09/27
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量子ポイントコンタクトを用いた量子ホールエッジ状態におけるエネルギー緩和の観測
大塚朋廣, 大月朋廣, 杉原裕規, 米田淳, 中島峻, 樽茶清悟
日本物理学会 2013/09/26
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Recent Progress on GaAs-based Spin Qubits
Tomohiro Otsuka, Takashi Nakajima, Matthieu R. Delbecq, Shinich Amaha, Jun Yoneda, Kenta Takeda, Akito Noiri, Jun Kamioka, Katsuharu Yoshida, Toshiaki Obata, Hong Lu, Borzoyeh Shojaei, Christopher Palmstrøm, Arthur Gossard, John Watson, Michael J. Manfra, Seigo Tarucha
半導体量子効果と量子情報の夏期研修会 2013/09/04
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Spin-based Quantum Information Processing with Quantum Dots
Tomohiro Otsuka, Takashi Nakajima, Matthieu R. Delbecq, Jun Yoneda, Kenta Takeda, Seigo Tarucha
RIKEN 異分野交流の夕べ 2013/08
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Direct phase control of a single spin qubit International-presentation
J. Yoneda, T. Otsuka, T. Nakajima, T. Takakura, T. Obata, H. Lu, C. Palmstrom, A. C. Gossard, S. Tarucha, ual, contri
International School and Conference on Spintronics and Quantum Information Technology 2013/07/31
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Coherent dynamics of a strongly driven single electron spin International-presentation
J. Yoneda, T. Otsuka, T. Nakajima, T. Takakura, T. Obata, H. Lu, C. Palmstrom, A. C. Gossard, S. Tarucha, ual, contri
International Conference on Electronic Properties of Two-dimentional Systems 2013/07/04
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Probing energy relaxation in quantum Hall edge states utilizing quantum point contacts International-presentation
T. Otsuka, Y. Sugihara, J. Yoneda, T. Nakajima, S. Tarucha, ual, contri
International Conference on Electronic Properties of Two-dimentional Systems 2013/07/02
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Spin-based Quantum Information Processing with Quantum Dots
Tomohiro Otsuka, Takashi Nakajima, Matthieu R. Delbecq, Jun Yoneda, Kenta Takeda, Seigo Tarucha
RIKEN CEMS One Day Workshop 2013/04
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トンネル結合制御可能な横型4重量子ドット
野入亮人, 高倉樹, 小幡利顕, 大塚朋廣, 米田淳, 吉田勝治, 樽茶清悟
日本物理学会 2013/03/29
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単一電子スピン高速ラビ振動の時間分解測定
米田淳, 大塚朋廣, 中島峻, 高倉樹, 小幡利顕, 樽茶清悟
日本物理学会 2013/03/29
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GaAs系量子ポイントコンタクトにおけるコンダクタンスの揺らぎのゲートバイアス依存性
中島峻, 大塚朋廣, 米田淳, 野入亮人, 樽茶清悟
日本物理学会 2013/03/26
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Fast electrical manipulation of single electron spins in semiconductor quantum dots
Jun Yoneda, Tomohiro Otsuka, Takashi Nakajima, Tatsuki Takakura, Katsuharu Yoshida, Toshiaki Obata, Seigo Tarucha, Hong Lu, Borzoyeh Shojaei, Christopher Palmstrøm, Arthur Gossard
量子情報処理プロジェクト、量子サイバネティクス全体会議 2012/12
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Detection of spin polarization utilizing singlet and triplet states in a single-lead quantum dot
Tomohiro Otsuka, Yuuki Sugihara, Jun Yoneda, Shingo Katsumoto, Seigo Tarucha
半導体量子効果と量子情報の夏期研修会 2012/09/06
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Recent progress in a semiconductor quantum dot system for quantum computation - speeding up and scaling up
Jun Yoneda, Tomohiro Otsuka, Takashi Nakajima, Akito Noiri, Tatsuki Takakura, Kenta Takeda, Toshiaki Obata, Katsuharu Yoshida, Seigo Tarucha, Hong Lu, Borzoyeh Shojaei, Christopher Palmstrøm, Arthur Gossard
半導体量子効果と量子情報の夏期研修会 2012/09/06
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Fast Electrical Control of Single Spins in Semiconductor Quantum Dots International-presentation
J. Yoneda, T. Otsuka, T. Takakura, K. Yoshida, T. Obata, S. Tarucha, H. Lu, C. Palmstrom, A. C. Gossard, qual contribution
International Conference on the Physics of Semiconductors 2012/08/02
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Single to Quadruple Quantum Dots with Tunable Interdot Tunnel Couplings International-presentation
T. Takakura, A. Noiri, T. Obata, T. Otsuka, J. Yoneda, K. Yoshida, S. Tarucha
International Conference on the Physics of Semiconductors 2012/08/02
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Detection of spin polarization with two-electron states in a single-lead quantum dot International-presentation
T. Otsuka, Y. Sugihara, J. Yoneda, S. Katsumoto, S. Tarucha
International Conference on the Physics of Semiconductors 2012/07/30
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Speed-up of spin manipulations in semiconductor quantum dots International-presentation
T. Otsuka, J. Yoneda, T. Takakura, K. Yoshida, T. Obata, S. Tarucha, H. Lu, C. Palmstrom, A. C. Gossard, qual contribution
International Conference on Quantum Dots 2012/05/18
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シングルリード量子ドット中の2電子状態を用いたスピン偏極検出
大塚朋廣, 杉原裕規, 米田淳, 小幡利顕, 勝本信吾, 樽茶清悟
日本物理学会 2012/03/26
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大きなZeeman磁場差を有する二重量子ドットでの電子スピン共鳴実験
米田淳, 大塚朋廣, 高倉樹, 小幡利顕, 樽茶清悟
日本物理学会 2012/03/26
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Speeding up single electron spin rotations in semiconductor quantum dots
Jun Yoneda, Tomohiro Otsuka, Tatsuki Takakura, Katsuharu Yoshida, Toshiaki Obata, Seigo Tarucha, Hong Lu, Christopher Palmstrøm, qual contributio
量子情報処理プロジェクト、量子サイバネティクス全体会議 2011/12/13
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Speeding up single electron spin rotations in semiconductor quantum dots International-presentation
J. Yoneda, T. Otsuka, T. Takakura, K. Yoshida, T. Obata, S. Tarucha, H. Lu, C. Palmstrom, A. C. Gossard, qual contribution
International Workshop on Solid-State Quantum Computing 2011/12/12
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Speed-up of Single Electron Spin Manipulation in Semiconductor Quantum Dots International-presentation
J. Yoneda, T. Otsuka, T. Takakura, K. Yoshida, T. Obata, S. Tarucha, ual, contri
International Workshop on Quantum Nanostructures and Nanoelectronics 2011/10
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隣接量子ドット間ゼーマンエネルギー差の微小磁石設計による制御
米田淳, 大塚朋廣, 高倉樹, 小幡利顕, 樽茶清悟
日本物理学会 2011/09/24
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Si/SiGe量子ドット構造のシミュレーションと作製
福岡佑二, 小寺哲夫, 大塚朋廣, 武田健太, 小幡利顕, 吉田勝治, 澤野憲太郎, 内田建, 白木靖寛, 樽茶清悟, 小田俊理
応用物理学会 2011/09/01
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Si/SiGe量子ドットにおけるショットキーゲート電極に対する考察
武田健太, 小幡利顕, 福岡佑二, 大塚朋廣, 小寺哲夫, 吉田勝治, 澤野憲太郎, 小田俊理, 白木靖寛, 樽茶清悟
日本物理学会 2011/03/28
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横結合型量子ドットによる量子ドットのエネルギー準位スペクトル測定
桑原優樹, KIM Sunwoo, 大塚朋廣, 家泰弘, 勝本信吾
日本物理学会 2011/03/28
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高速スピン回転操作のための大きな磁場差をもつ二重量子ドットデバイス
米田淳, 大塚朋廣, 高倉樹, 小幡利顕, 樽茶清悟
日本物理学会 2011/03/28
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Si/SiGe量子ドット作製に向けたPdトップゲート動作点の低電圧化
福岡佑二, 小寺哲夫, 大塚朋廣, 武田健太, 小幡利顕, 吉田勝治, 澤野憲太郎, 内田建, 白木靖寛, 樽茶清悟, 小田俊理
応用物理学関係連合講演会 2011/03/26
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Speed-up of spin manipulation in semiconductor quantum dot
Tomohiro Otsuka, Jun Yoneda, Toshiaki Obata, Tatsuki Takakura, Kenta Takeda, Katsuharu Yoshida, Seigo Tarucha
量子情報処理プロジェクト報告会 2010/12
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PdショットキーゲートによるSi/SiGe量子ドットの作製とその評価
武田健太, 小幡利顕, 福岡佑二, 大塚朋廣, 小寺哲夫, 吉田勝治, 澤野憲太郎, 小田俊理, 白木靖寛, 樽茶清悟
日本物理学会 2010/09/24
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Lateral dot fabrication by using a MOS electric gate on SiGe hetero structure.
小幡利顕, 申潤錫, ロランドブルナ, 武田健太, 福岡佑二, 大塚朋廣, 小寺哲夫, 吉田勝治, 澤野憲太郎, 小田俊理, 白木靖寛, 樽茶清悟
日本物理学会 2010/09/24
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Si/SiGe系2DEGのPdショットキーゲート制御による結合量子ドットの作製
福岡佑二, 小寺哲夫, 大塚朋廣, 武田健太, 小幡利顕, 吉田勝治, 澤野憲太郎, 内田建, 白木靖寛, 樽茶清悟, 小田俊理
応用物理学会 2010/09/14
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微小磁石を用いた半導体量子ドット中の電子スピン操作
大塚朋廣, 米田淳, 小幡利顕, 高倉樹, 武田健太, Michel Pioro-Ladriere, 吉田勝治, 樽茶清悟
量子情報処理プロジェクトサマースクール 2010/08
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Energy level spectroscopy of a quantum dot with a side‐coupled satellite dot International-presentation
Sunwoo Kim, Yuki Kuwabara, Tomohiro Otsuka, Yasuhiro Iye, Singo Katsumoto
International Conference on the Physics of Semiconductors 2010/07
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Probing Local Electronic States in the Quantum Hall Regime with a Side Coupled Quantum Dot International-presentation
T. Otsuka, E. Abe, Y. Iye, S. Katsumoto
International Symposium on Quantum Nanostructures and Spin-related Phenomena 2010/03
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Probing local electronic states in the quantum Hall regime International-presentation
T. Otsuka, E. Abe, Y. Iye, S. Katsumoto
International Symposium on Quantum Nanophotonics and Nanoelectronics 2009/11
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横結合型量子ドットを用いた量子ホール状態の観測
大塚朋廣, 阿部英介, 家泰弘, 勝本信吾
日本物理学会 2009/09/26
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Probing edge states in the quantum Hall regime with a side coupled quantum dot International-presentation
T. Otsuka, E. Abe, Y. Iye, S. Katsumoto
International Symposium on Compound Semiconductors 2009/08
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Detection of spin polarization in a quantum wire International-presentation
Tomohiro Otsuka, Eisuke Abe, Yasuhiro Iye, Shingo Katsumoto
International Conference on Electronic Properties of Two-dimentional Systems 2009/07/21
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側面結合量子ドットによるスピン偏極検出
大塚朋廣, 阿部英介, Amnon Aharony, Ora Entin-Wohlman, 都倉康弘, 勝本信吾
ナノ量子情報エレクトロニクス公開シンポジウム 2009/04/22
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横結合型量子ドットを用いたスピン偏極の検出
大塚朋廣, 阿部英介, 家泰弘, 勝本信吾
日本物理学会 2009/03/30
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Detection of spin polarization with a side coupled quantum dot International-presentation
T. Otsuka, E. Abe, Y. Iye, S. Katsumoto
International Symposium on Nanoscale Transport and Technology 2009/01/22
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側面結合した量子ドットによるスピン検出
勝本信吾, 大塚朋廣, 阿部英介, 家泰弘
物性科学領域横断研究会 2008/11
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Excited state spectroscopy in side-coupled quantum dots International-presentation
T. Otsuka, E. Abe, Y. Iye, S. Katsumoto
The IEEE Nanotechnology Materials and Devices Conference 2008/10/21
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横結合型量子ドットにおける励起状態の観測
大塚朋廣, 阿部英介, 家泰弘, 勝本信吾
日本物理学会 2008/09/20
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半導体量子ドットスピン状態の制御
大塚朋廣, 阿部英介, 勝本信吾
スピン流の創出と制御研究会 2008/02
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T結合型量子ドットにおけるクーロン相互作用を利用した軌道占有制御
大塚朋廣, 阿部英介, 家泰弘, 勝本信吾
ナノ量子情報シンポジウム 2007/10/25
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Control of shell filling with Coulomb interaction in quantum dots side-coupled to quantum wires International-presentation
T. Otsuka, E. Abe, Y. Iye, S. Katsumoto
International Symposium on Compound Semiconductors 2007/10/15
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横結合型量子ドットにおけるクーロン相互作用
大塚朋廣, 阿部英介, 勝本信吾, 家泰弘
日本物理学会 2007/09/24
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Potential dependent intra-dot Coulomb interaction in quantum dots side-coupled to quantum wires International-presentation
Tomohiro Otsuka, Eisuke Abe, Yasuhiro Iye, Shingo Katsumoto
International Conference on Electronic Properties of Two-dimentional Systems 2007/07
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近藤状態の非局所制御
大塚朋廣, 勝本信吾, 家泰弘
日本物理学会 2007/03/20
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Electronic states in quantum dots side-coupled to quantum wires International-presentation
Tomohiro Otsuka, Eisuke Abe, Shingo Katsumoto, Yasuhiro Iye
Frontiers in Nanoscale Science and Technology Workshop 2007/03
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近藤状態の非局所制御
大塚朋廣, 勝本信吾, 家泰弘
半導体スピン工学の基礎と応用研究会 2006/12
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Phase Information from Two-Terminal Conductance of Quantum Dot Systems International-presentation
T. Otsuka, H. Aikawa, M. Eto, G. L. Khym, K. Kang, Y. Iye, S. Katsumoto
International Conference on the Physics of Semiconductors 2006/07/28
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2端子ABリングでの位相固定の破れについて
勝本信吾, 大塚朋廣, Amnon Aharony, Ora Entin-Wohlman
日本物理学会 2006/03/29
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横結合型量子ドットを持つ量子細線の伝導特性
大塚朋廣, 勝本信吾, 家泰弘, G. L. Khym, Kicheon Kang
日本物理学会 2006/03/29
Research Projects 9
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プラズママテリアルズインフォマティクスが拓く完全カイラリティ制御ナノチューブ合成
加藤 俊顕, 岩崎 悠真, 大塚 朋廣, 是常 隆
Offer Organization: 日本学術振興会
System: 科学研究費助成事業
Category: 基盤研究(A)
Institution: 東北大学
2023/04/01 - 2027/03/31
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半導体量子ドットデバイスの放射線応答の調査と放射線検出器への利用
吉田 斉, 岸本 康宏, 大塚 朋廣
Offer Organization: 日本学術振興会
System: 科学研究費助成事業 挑戦的研究(萌芽)
Category: 挑戦的研究(萌芽)
Institution: 大阪大学
2022/06/30 - 2025/03/31
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デコヒーレンスを活用した革新的量子技術の研究
大塚 朋廣
Offer Organization: 日本学術振興会
System: 科学研究費助成事業
Category: 挑戦的研究(萌芽)
Institution: 東北大学
2021/07/09 - 2024/03/31
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Elucidation and control of hole spin dynamics in quantum structures
Offer Organization: Japan Society for the Promotion of Science
System: Grants-in-Aid for Scientific Research
Category: Grant-in-Aid for Scientific Research (A)
Institution: Tokyo Institute of Technology
2020/04/01 - 2023/03/31
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先進プラズマ活用1次元ナノカーボン材料の完全原子配列制御合成と革新的応用開拓
加藤 俊顕, 大塚 朋廣, 澁田 靖
Offer Organization: 日本学術振興会
System: 科学研究費助成事業
Category: 基盤研究(A)
Institution: 東北大学
2019/04/01 - 2023/03/31
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スピン変換研究に向けた電気的超高速局所スピンプローブの開発と応用
大塚 朋廣
Offer Organization: 日本学術振興会
System: 科学研究費助成事業
Category: 新学術領域研究(研究領域提案型)
2017/04/01 - 2019/03/31
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高速量子プローブを用いた微小系の電子輸送ゆらぎの研究
大塚 朋廣
Offer Organization: 日本学術振興会
System: 科学研究費助成事業
Category: 新学術領域研究(研究領域提案型)
Institution: 国立研究開発法人理化学研究所
2016/04/01 - 2018/03/31
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Probing local electronic and spin states in semiconductor microstructures by single-lead quantum dots
OTSUKA Tomohiro
Offer Organization: Japan Society for the Promotion of Science
System: Grants-in-Aid for Scientific Research
Category: Grant-in-Aid for Young Scientists (B)
Institution: The Institute of Physical and Chemical Research
2013/04/01 - 2015/03/31
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Study of quantum coherence in multiple system utilizing multi single-lead quantum dots
OTSUKA Tomohiro
Offer Organization: Japan Society for the Promotion of Science
System: Grants-in-Aid for Scientific Research
Category: Grant-in-Aid for Research Activity Start-up
Institution: The University of Tokyo
2010 - 2011
Media Coverage 12
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量子ドットの電荷状態を高速に検出する解析手法を開発 ─ 量子コンピュータの読み出し速度向上や物性探索に期待
東北大学プレスリリース
2025/04/09
Type: Internet
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酸化亜鉛における電界制御量子ドット形成と量子多体効果観測を実現 ─新材料量子デバイス開発に期待─
東北大学プレスリリース
2024/11/08
Type: Internet
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機械学習活用による量子ドットの電荷状態推定と可視化に基づく更なる性能改善を実証 ─量子コンピューターの大規模化への貢献に期待─
東北大学プレスリリース
2024/04/22
Type: Internet
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東北大、機械学習活用による量子ドットの電荷状態推定と可視化に基づく更なる性能改善を実証
日本経済新聞
2024/04/22
Type: Internet
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電気伝導の詳細評価 単一コロイド量子ドット 東北工大など
日刊工業新聞
2023/12/18
Type: Newspaper, magazine
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単一コロイド量子ドットで電気伝導の評価と制御に成功
東北大学プレスリリース
2023/12/01
Type: Internet
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東北工業大・東大・東北大・理研・東京農工大、単一コロイド量子ドットで電気伝導の評価と制御に成功
日本経済新聞
2023/12/01
Type: Internet
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東北大、高速量子ビット読み出し手法をグラフェンで実現
日本経済新聞
2023/07/18
Type: Internet
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高速量子ビット読み出し手法をグラフェンで実現 ─グラフェン量子コンピュータへ期待─
東北大プレスリリース
2023/07/18
Type: Internet
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東北大、グラフェンナノリボン上で量子ドット作成 量子デバイス作製に応用
日刊工業新聞
2023/01/09
Type: Newspaper, magazine
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東北大、グラフェン量子ドットデバイスの集積化合成技術を開発
日本経済新聞
2023/01/06
Type: Internet
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グラフェン量子ドットデバイスの集積化合成技術を開発 ― 次世代高性能量子コンピュータの実現に期待 ―
東北大プレスリリース
2023/01/06
Type: Internet