Profile
Shunsuke Ota
Assistant Professor, Kodera Lab, Institute of Science Tokyo
I am engaged in research on fundamental technologies for quantum bits and quantum computers, particularly using semiconductor quantum dots.
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News
- 2026/04/01 Appointed as Assistant Professor, Department of Electrical and Electronic Engineering, School of Engineering, Institute of Science Tokyo.
- 2026/03/18 Received the 47th JSAP Outstanding Paper Award and delivered a commemorative presentation at the JSAP Spring Meeting @Tokyo.
- 2026/03/06 Gave an invited talk at the Leti Science Seminar @CEA (Grenoble, France).
- 2026/02 Two co-authored papers were published in the Japanese Journal of Applied Physics.
- 2025/12 Attended and presented research at the 1st International Workshop on Industrial-grade Ge Quantum Technology @Osaka.
- 2025/07 Attended and presented research at The International Symposium on Quantum Science, Technology and Innovation 2025 @Osaka.
- 2025/03 Received the FY2024 Seiichi Tejima Research Award (Doctoral Dissertation Award).
- 2025/01 Appointed as Specially Appointed Assistant Professor at the Institute of Science Tokyo.
- 2025 A co-authored paper was published in Appl. Phys. Lett.
- 2024/09 Received the 56th JSAP Young Scientist Presentation Award and delivered a commemorative presentation at the JSAP Autumn Meeting @Niigata.
- 2024/04 Appointed as a Researcher at Tokyo Institute of Technology.
- 2024/03 Received a Ph.D. in Engineering.
- 2024/02 First-authored papers were published in Phys. Rev. Applied and Appl. Phys. Express.
Career
- 04/2026 – Present Institute of Science Tokyo, Assistant Professor
- 01/2025 – 03/2026 Institute of Science Tokyo, Specially Appointed Assistant Professor
- 04/2024 – 12/2024 Institute of Science Tokyo (formerly Tokyo Institute of Technology), Researcher
- 03/2024 Tokyo Institute of Technology, Ph.D. in Engineering
- 09/2022 – 12/2022 University of Twente, EEMCS, NanoElectronics Group, Guest researcher
- 01/2022 – 02/2022 Institute Néel QuantECA, CNRS, France, Visiting scientist
- 03/2021 Tokyo Institute of Technology, M.Eng.
- 04/2019 – 03/2024 National Institute of Advanced Industrial Science and Technology (AIST), Research Assistant
- 03/2019 Tokyo Institute of Technology, B.Eng.
Publications
Journal articles
- R. Mizokuchi, R. Wada, R. Matsuoka, S. Ota, I. Yanagi, T. Mine, R. Tsuchiya, D. Hisamoto, H. Mizuno, T. Kodera. Improved readout accuracy of a silicon spin qubit via log-likelihood ratio, Japanese Journal of Applied Physics, 65, 02SP03 (2026).
- D. Zhang†, N. Negami†, R. Mizokuchi†, S. Ota, R. Wada, T. Kodera. Multi-bit state discrimination using machine learning for IQ-encoded spin-qubit readout, Japanese Journal of Applied Physics, 65, 05SP22 (2026). (†: contributed equally to this work)
- K. Fujiwara, S. Ota, T. Kodera, Y. Okazaki, N.-H. Kaneko, N. Jiang, Y. Niimi, S. Takada. Generation of a single-cycle surface acoustic wave pulse on LiNbO3 for application to thin-film materials, Appl. Phys. Lett. 127, 022406 (2025) [arXiv: 2507.02417].
- S. Ota, Y. Okazaki, S. Nakamura, T. Oe, H. Sellier, C. Bäuerle, N.-H. Kaneko, T. Kodera, S. Takada. Suppression of electromagnetic crosstalk by differential excitation for SAW generation, Appl. Phys. Express 17, 022002 (2024) [arXiv: 2312.15413].
- S. Ota, J. Wang, H. Edlbauer, Y. Okazaki, S. Nakamura, T. Oe, A. Ludwig, A. D. Wieck, H. Sellier, C. Bäuerle, N.-H. Kaneko, T. Kodera, S. Takada. On-demand single-electron source via single-cycle acoustic pulses, Phys. Rev. Applied 21, 024034 (2024) [arXiv: 2312.00274].
- J. Wang, H. Edlbauer, A. Richard, S. Ota, W. Park, J. Shim, A. Ludwig, A. D. Wieck, H.-S. Sim, M. Urdampilleta, T. Meunier, T. Kodera, N.-H. Kaneko, H. Sellier, X. Waintal, S. Takada & C. Bäuerle. Coulomb-mediated antibunching of an electron pair surfing on sound, Nature Nanotechnology 18, 721 (2023) [arXiv: 2210.03452].
- J. Wang*, S. Ota*, H. Edlbauer*, B. Jadot, P.-A. Mortemousque, A. Richard, Y. Okazaki, S. Nakamura, A. Ludwig, A. D. Wieck, M. Urdampilleta, T. Meunier, T. Kodera, N.-H. Kaneko, S. Takada, C. Bäuerle. Generation of a Single-Cycle Acoustic Pulse: A Scalable Solution for Transport in Single-Electron Circuits, Phys. Rev. X 12, 031035 (2022) [arXiv: 2208.00489]. (*: contributed equally to this work)
- H. Edlbauer*, J. Wang*, S. Ota*, A. Richard, B. Jadot, P.-A. Mortemousque, Y. Okazaki, S. Nakamura, T. Kodera, N.-H. Kaneko, A. Ludwig, A. D. Wieck, M. Urdampilleta, T. Meunier, C. Bäuerle, S. Takada. In-flight distribution of an electron within a surface acoustic wave, Appl. Phys. Lett. 119, 114004 (2021) [arXiv: 2107.09823]. (*: contributed equally to this work)
International Conferences
- S. Ota, T. Fukuda, T. Toshimitsu, R. Mizokuchi, T. Kodera. Cryogenic Characterization of Commercial Heterojunction Bipolar Transistors as Current Amplifiers Toward Semiconductor Spin Qubit Readout, 1st International Workshop on Industrial-grade Ge Quantum Technology, Dec. 2025.
- R. Mizokuchi, R. Wada, R. Matsuoka, S. Ota, I. Yanagi, T. Mine, R. Tsuchiya, D. Hisamoto, H. Mizuno, T. Kodera. Log-Likelihood Ratio for Improving Accuracy in Silicon Spin Qubit Readout, 2nd International Workshop on Quantum Information Engineering (QIE2025), Oct. 2025.
- N. Negami, R. Mizokuchi, S. Ota, R. Wada, Z. Duanlian, T. Kodera. Multi-Bit State Classification via Machine Learning in IQ-Encoded Spin Qubit Readout, 2025 International Conference on Solid Devices and Materials (SSDM2025), Sept. 2025.
- R. Mizokuchi, R. Wada, R. Matsuoka, S. Ota, I. Yanagi, T. Mine, R. Tsuchiya, D. Hisamoto, H. Mizuno, T. Kodera. Improved readout accuracy of a silicon spin qubit via maximum likelihood estimation, 2025 International Conference on Solid Devices and Materials (SSDM2025), Sept. 2025.
- S. Ota, S. I. Ibad, C. Kondo, R. Mizokuchi, R. Wada, R. Matsuoka, I. Yanagi, T. Mine, R. Tsuchiya, D. Hisamoto, H. Mizuno, T. Kodera. Comparative evaluation of electron- and hole-properties in silicon quantum dots, The International Symposium on Quantum Science, Technology and Innovation 2025, July 2025.
- S. Ota, J. Wang, H. Edlbauer, Y. Okazaki, S. Nakamura, T. Oe, A. Ludwig, A.D. Wieck, T. Kodera, C. Bäuerle, S. Takada, N.-H. Kaneko. Crosstalk Effect for Acousto-Electric Quantized Current, 2023 International Conference on Solid State Devices and Materials (SSDM2023), B-2-04, Nagoya, Japan, September 6 (2023).
- S. Ota, J. Wang, H. Edlbauer, Y. Okazaki, S. Nakamura, A. Ludwig, A.D. Wieck, T. Kodera, C. Bäuerle, S. Takada, N.-H. Kaneko. On-demand Single-Electron Source with Acousto-Electric Pulses, 25th International Conference on Electronic Properties of Two-Dimensional Systems/21th International Conference on Modulated Semiconductor Structures (EP2DS-25/MSS-21 Joint Conference), 10A-2, Grenoble, France, July 13 (2023).
- S. Ota, J. Wang, H. Edlbauer, A. Richard, B. Jadot, P.-A. Mortemousque, Y. Okazaki, S. Nakamura, T. Kodera, N.-H. Kaneko, A. Ludwig, A.D. Wieck, M. Urdampilleta, T. Meunier, S. Takada, C. Bäuerle. Single-Electron Transport with Acousto-Electric Chirp Pulses, 24th International Conference on Electronic Properties of Two-Dimensional Systems/20th International Conference on Modulated Semiconductor Structures (EP2DS-24/MSS-20 Joint Conference), M-4-02, ALL-VIRTUAL Conference, November 2 (2021).
- S. Ota, S. Hiraoka, R. Mizokuchi, T. Kodera. Observation of bipolar Pauli spin blockade and the few-electron regime in a silicon linearly triple quantum dot, Topical Conference on Quantum Computing 2019 (TCQC2019), Kyoto, Japan, December 17-18 (2019).
- S. Ota, S. Hiraoka, R. Matsuoka, R. Mizokuchi, T. Kodera. Bipolar Pauli spin blockade in a silicon linearly coupled triple quantum dot, 2019 International Conference on Solid State Devices and Materials (SSDM2019), E-1-03, Nagoya, Japan, September 3 (2019).
Invited Talks
- S. Ota. Fundamental Technologies for Scalable Semiconductor Quantum Computing, Leti Science Seminar, CEA, Grenoble, France, March 6 (2026).
Thesis
- Surface Acoustic Wave-Driven Single-Electron Transport for Quantum Information Processing（Tokyo Institute of Technology、2024）
Portfolio
Images and photos I designed or took.
Semiconductor chip conceptual diagram
Surface acoustic wave device conceptual diagram
Thái Văn Lung Quận 1
Marseille
Inokashira Park
© Shunsuke Ota.