Fujii Keisuke

Affiliation and department：
Other affiliations (1)：

Homepage URL (1)： http://quantphys.org/wp/keisukefujii/

Research field (3)： Mathematical physics and basic theory , Information theory , Semiconductors, optical and atomic physics

Research keywords (6)：誤り耐性量子計算 , 量子情報 , 量子誤り訂正 , 量子コンピュータ , 量子エレクトロニクス , トポロジカル量子符号

Research theme for competitive and other funds (2)：

2016 - 2021 The second law of thermodynamics in isolated quantum many-body systems
2013 - 2015 Proposal of novel control schemes for scalable quantum information processing

Papers (135)：

Naixu Guo, Kosuke Mitarai, Keisuke Fujii. Nonlinear transformation of complex amplitudes via quantum singular value transformation. Physical Review Research. 2024. 6. 4
Kaito Kobayashi, Keisuke Fujii, Naoki Yamamoto. Feedback-driven quantum reservoir computing for time-series analysis. PRX Quantum. 2024. 5. 4. 040325-1-040325-16
Hitomi Mori, Keisuke Fujii, Kaoru Mizuta. Comment on "Multivariable quantum signal processing (M-QSP): prophecies of the two-headed oracle". Quantum. 2024. 8. 1512:1-1512:11
Kaoru Mizuta, Tatsuhiko N Ikeda, Keisuke Fujii. Explicit error bounds with commutator scaling for time-dependent product and multi-product formulas. arXiv:2410.14243. 2024
Yuki Ito, Hitomi Mori, Kazuki Sakamoto, Keisuke Fujii. Polynomial time constructive decision algorithm for multivariable quantum signal processing. arXiv:2410.02332. 2024

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MISC (76)：

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Books (4)：

驚異の量子コンピュータ: 宇宙最強マシンへの挑戦
岩波書店 2019 ISBN:9784000296892
観測に基づく量子計算
コロナ社 2017 ISBN:4339028703
Quantum Computation with Topological Codes: From Qubit to Topological Fault-Tolerance (SpringerBriefs in Mathematical Physics Vol.8)
Springer 2015 ISBN:9789812879950
Topological protection of quantum information (in Kinki University Series on Quantum Computing Vol.9 "Physics, Mathematics, and All That Quantum Jazz ")
World Scientific 2014 ISBN:9789814602365

Lectures and oral presentations (295)：

Improving threshold for fault-tolerant color code quantum computing by flagged weight optimization
(iSAP Hamamatsu 2024 International Symposium on Advanced Photonics)
Early FTQC: closing the gap between NISQ and FTQC
(iSAP Hamamatsu 2024 International Symposium on Advanced Photonics)
計算都市ウメダ
(ウメダの未来フォーラム量子のまち編 2024)
第2回量子コンピューティングの基礎と量子アルゴリズム
(応物セミナー「量子コンピューター」 2024)
Quantum Circuit Unoptimization and Its Applications
(Quantum software, middleware, and controller for near-term quantum computing systems 2024)

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Professional career (1)：

Work history (6)：

2019/04 - 現在 Osaka University Graduate School of Engineering Science Professor
2017/10 - 2019/03 Kyoto University Associate Professor
2016/04 - 2017/09 The University of Tokyo Photon Science Center Assistant Professor
2015/04 - 2016/03 Kyoto University The Hakubi Center for Advanced Research/ Graduate School of Science Assistant Professor
2013/04 - 2015/03 Kyoto University The Hakubi Center for Advanced Research/ Graduate School of Informatics Assistant Professor

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Awards (5)：

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