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Nobumasa Ishida (Ph.D.)
Profile
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College Degree: Ph.D. in Information Science and Technology, The University of Tokyo
- Position: Project Researcher, Yamasaki Lab, Department of Information and Communication Engineering, Graduate School of Information Science and Technology, The University of Tokyo
- Address: Faculty of Engineering Bldg.2 111C1, 7-3-1 Hongo, Bunkyo-Ku, Tokyo, 113-8654, Japan
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Background:
- 2026.04 - present: Project Researcher, Yamasaki Lab, Department of Information and Communication Engineering, Graduate School of Information Science and Technology, The University of Tokyo
- 2022.04 - 2026.03: Ph.D. in Information Science and Technology, Department of Information and Communication Engineering, Graduate School of Information Science and Technology, The University of Tokyo
Supervisor: Associate Prof. Yoshihiko Hasegawa
- 2023.04 - 2025.03: Doctoral Course Research Fellowships of Japan Society for the Promotion of Science
- 2020.04 - 2022.03: Master's in Information Science and Technology, Department of Information and Communication Engineering, Graduate School of Information Science and Technology, The University of Tokyo
Supervisor: Prof. Masashi Toyoda
- 2016.04 - 2020.03: Department of Information and Communication Engineering, The University of Tokyo
Supervisor: Associate Prof. Yoshihiko Hasegawa
- 2013.04 - 2016.03: Matsumoto Fukashi High School, Nagano
Current Research
- Quantum Machine Learning
- Quantum Thermodynamics
Past Research
- Stochastic Thermodynamics
- Urban Computing
- Mobility Data Modeling
Publications
Preprints
Journals
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Nobumasa Ishida, Yoshihiko Hasegawa
Quantum Computer-Based Verification of Quantum Thermodynamic Uncertainty Relation
Physical Review E, 2025, vol.112, 034124 (arXiv 2024, 2402.19293)
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Nobumasa Ishida, Masashi Toyoda, Kazutoshi Umemoto, Koji Zettsu
Revealing spatiotemporal variations in areas potentially linked to COVID-19 spread using fine-grained population data
Scientific Reports , 2025, vol.15, 22636 (Open Access)
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Nobumasa Ishida, Yoshihiko Hasegawa
Accelerated Jarzynski Estimator with Deterministic Virtual Trajectories
Physical Review E, 2022, vol.105, 054120
Conferences
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Memory Advantage in Quantum Generative Sequence Translation under Noise
Nobumasa Ishida, Toshihiko Yamasaki
IEEE International Conference on Quantum Computing and Engineering, 2026, Toronto, Canada (poster, 2 pages).
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量子逐次生成モデルにおけるノイズ下の表現効率分離
石田展雅, 山﨑俊彦
2026年度日本人工知能学会全国大会, 2026年6月, 群馬.
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量子計算における失敗ブランチの熱力学的リサイクル：理論と量子計算機実証
石田展雅, 長谷川禎彦
第54回量子情報技術研究会, 2026年5月, 三重.
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Demonstrating Thermodynamic Trade-Off Relations Using Quantum Computer
Nobumasa Ishida, Yoshihiko Hasegawa
Quantum Thermodynamics Conference 2024 (QTD2024), 2024, College Park, MD, USA
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細胞の意思決定における理論的な精度限界
石田展雅, 長谷川禎彦
第61回 日本生物物理学会年会, November 2023, Nagoya, Japan.
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Energy-accuracy trade-off in sensing first passage time
Nobumasa Ishida, Yoshihiko Hasegawa
StatPhys 28, 2023, Tokyo, Japan.
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閾値処理における精度と消費エネルギーのトレードオフ関係
石田展雅，長谷川禎彦
電子情報通信学会 非線形問題研究会, August 2022, Online.
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携帯電話人口統計データと新規陽性者数の相関に着目したCOVID-19の感染リスク地区の抽出
石田展雅，豊田正史，梅本和俊，商海川，是津耕司
人工知能学会 第35回全国大会 (JSAI), June 2021, Online.
Award
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2022.03: Chair's Award for the Best Master Thesis,
Department of Information and Communication Engineering,
Graduate School of Information and Technology,
The University of Tokyo
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2020.03: Graduation Thesis Award,
Department of Electrical and Electronic Engineering,
Faculty of Engineering,
The University of Tokyo
Contact