Otsuka Tomohiro

オオツカトモヒロ | Otsuka Tomohiro

Affiliation and department：
Job title： Associate Professor
Other affiliations (7)：

Tohoku University Research Institute of Electrical Communication Associate Professor
Tohoku University Department of Electrical Engineering, School of Engineering Associate Professor
Tohoku University Center for Science and Innovation in Spintronics Associate Professor
Tohoku University Associate Professor
Tohoku University Research Center for Neutrino Science Associate Professor

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Homepage URL (2)： https://ja.qd.riec.tohoku.ac.jp/ , https://en.qd.riec.tohoku.ac.jp/

Research field (3)： Semiconductors, optical and atomic physics , Nano/micro-systems , Nanomaterials

Research keywords (8)： Spintronics , Quantum Device , Quantum Wire , Quantum Dot , Semiconductor Physics , Low Temperature Physics , Condensed Matter Physics , 量子情報処理プロジェクト

Research theme for competitive and other funds (9)：

2023 - 2027 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
2022 - 2025 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
2021 - 2024 デコヒーレンスを活用した革新的量子技術の研究
2020 - 2023 Elucidation and control of hole spin dynamics in quantum structures
2019 - 2023 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

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Papers (71)：

Kosuke Noro, Yusuke Kozuka, Kazuma Matsumura, Takeshi Kumasaka, Yoshihiro Fujiwara, Atsushi Tsukazaki, Masashi Kawasaki, Tomohiro Otsuka. Parity-independent Kondo effect of correlated electrons in electrostatically defined ZnO quantum dots. Nature Communications. 2024. 15. 1
Riku Tataka, Alka Sharma, Motoya Shinozaki, Tomoya Johmen, Takeshi Kumasaka, Yong P. Chen, Tomohiro Otsuka. Surface Gate-Defined Quantum Dots in MoS₂ with Bi Contacts. Journal of the Physical Society of Japan. 2024. 93. 9. 094601-1-094601-5
Motoya Shinozaki, Takaya Abe, Kazuma Matsumura, Takumi Aizawa, Takeshi Kumasaka, Tomohiro Otsuka. Microwave-dependent quantum transport characteristics in near pinched-off GaN/AlGaN field-effect transistors. Physical Review B. 2024. 110. 035305-1-035305-7
Yui Muto, Takumi Nakaso, Motoya Shinozaki, Takumi Aizawa, Takahito Kitada, Takashi Nakajima, Matthieu R. Delbecq, Jun Yoneda, Kenta Takeda, Akito Noiri, et al. Visual explanations of machine learning model estimating charge states in quantum dots. APL Machine Learning. 2024. 2. 026110-1-026110-7
Yoshihiro Fujiwara, Motoya Shinozaki, Kazuma Matsumura, Kosuke Noro, Riku Tataka, Shoichi Sato, Takeshi Kumasaka, Tomohiro Otsuka. Wide dynamic range charge sensor operation by high-speed feedback control of radio-frequency reflectometry. Applied Physics Letters. 2023. 123. 21. 213502-1-213502-7

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MISC (49)：

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, et al. Visual explanations of the machine learning model to recognize the charge states in quantum dots. 日本物理学会講演概要集(CD-ROM). 2023. 78. 1
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, et al. Improving generalization ability of automatic charge-state estimation in quantum dots by machine learning. 日本物理学会講演概要集(CD-ROM). 2023. 78. 2
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, et al. Noise-robust charge state recognition in quantum dots using machine learning and preprocessing. 日本物理学会講演概要集(CD-ROM). 2022. 77. 1
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, et al. Real-time measurement of QCA charge state transition in quantum dots by rf-reflectometry. 日本物理学会講演概要集(CD-ROM). 2022. 77. 1
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, et al. Noise analysis of high-frequency measurements in quantum dots. 日本物理学会講演概要集(CD-ROM). 2020. 75. 2

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Lectures and oral presentations (213)：

Semiconductor quantum devices based on new materials
(3rd International Workshop of Spin/Quantum Materials and Devices & 6th Workshop on Quantum and Classical Cryogenic Devices, Circuits, and Systems 2024)
Exploring Quantum Devices with New Materials
(Quantum Innovation 2024 2024)
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
(日本物理学会 2024)
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
(日本物理学会 2024)
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
(日本物理学会 2024)

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Education (3)：

2007 - 2010 University of Tokyo (ISSP Katsumoto Lab) Ph.D. course, Department of Physics
2005 - 2007 University of Tokyo (ISSP Katsumoto Lab) Master course, Department of Physics
2003 - 2005 University of Tokyo Department of Physics

Professional career (1)：

Doctor of Science (University of Tokyo)

Work history (19)：

2024/04 - 現在 Tohoku University Research Center for Neutrino Science Associate Professor
2022/04 - 現在 Tohoku University Advanced Institute for Materials Research Associate Professor
2020/08 - 現在 Tohoku University Tohoku Quantum Alliance Co-director
2019/12 - 現在 Organization for Advanced Studies Associate Professor
2019/04 - 現在 Center for Science and Innovation in Spintronics, Tohoku University Associate Professor

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Awards (12)：

2023/04 - Tohoku University Distinguished Researcher
2020/07 - Tohoku University Distinguished Researcher
2020/05 - Intelligent Cosmos Academic Foundation Intelligent Cosmos Academic Foundation Research Encouraging Award
2018/09 - RIEC, Tohoku University RIEC Research Exchange Meeting Good Presentation Award
2018/04 - Minister of Education, Culture, Sports, Science and Technology The Young Scientists’ Prize, The Commendation for Science and Technology by the Minister of Education, Culture, Sports, Science and Technology

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Association Membership(s) (1)：

THE PHYSICAL SOCIETY OF JAPAN

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