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J-GLOBAL ID：202101008243519475   Update date: Nov. 13, 2024

Kuwahara Tomotaka

クワハラ トモタカ | Kuwahara Tomotaka
Affiliation and department：
RIKEN RIKEN Cluster for Pioneering Research / RIKEN Center for Quantum Computing

About RIKEN RIKEN Cluster for Pioneering Research / RIKEN Center for Quantum Computing


Job title： RIKEN Hakubi team leader
Homepage URL  (2)： https://kuwahara-quantum.com/ ,  https://kuwahara-quantum.com/en/
Research field  (1)： Mathematical physics and basic theory
Research keywords  (1)： Quantum information, entanglement, Hamiltonian complexity, quantum many-body systems, Lieb-Robinson bound
Research theme for competitive and other funds  (4)：
  • 2024 - 2029 Foundations of Secure Distributed Quantum Computing on Medium-Scale Quantum Computers
  • 2021 - 2025 Exponential speedup in quantum computing based on quantum many-body theory
  • 2018 - 2022 Computational complexity of quantum many-body problem in terms of Tensor Network formalism
  • 2014 - 2016 量子多体系基底状態の複雑性の解析---量子情報論的視点---
Papers (27)：
  • Tan Van Vu, Tomotaka Kuwahara, Keiji Saito. Optimal light cone for macroscopic particle transport in long-range systems: A quantum speed limit approach. Quantum. 2024. 8. 1483
  • Tan Van Vu, Tomotaka Kuwahara, Keiji Saito. Fidelity-dissipation relations in quantum gates. Fidelity-dissipation relations in quantum gates. 2024. 6. 033225
  • Tomotaka Kuwahara, Tan Van Vu, Keiji Saito. Effective light cone and digital quantum simulation of interacting bosons. Nature Communications. 2024. 15. 1. 2520
  • Tomotaka Kuwahara, Keiji Saito. Exponential Clustering of Bipartite Quantum Entanglement at Arbitrary Temperatures. Physical Review X. 2022. 12. 2
  • Takaaki Minato, Koudai Sugimoto, Tomotaka Kuwahara, Keiji Saito. Fate of Measurement-Induced Phase Transition in Long-Range Interactions. Physical Review Letters. 2022. 128. 1
ｍore...
MISC (6)：
  • Kuwahara Tomotaka, Arad Itai, Amico Luigi, Vedral Vlatko. 8pAZ-3 Stability to an external perturbation implies no quantum macroscopicity. Meeting abstracts of the Physical Society of Japan. 2014. 69. 2. 75-75
  • Kuwahara Tomotaka. Complementary inequality between the Fisher information and the energy gap. Meeting abstracts of the Physical Society of Japan. 2013. 68. 2. 222-222
  • Kuwahara Tomotaka. 27pXX-10 General upper bound of energy gap in terms of fluctuation of additive operators. Meeting abstracts of the Physical Society of Japan. 2013. 68. 1. 365-365
  • Kuwahara Tomotaka. 18aAK-10 General conditions for the generation of the long-distance entanglement. Meeting abstracts of the Physical Society of Japan. 2012. 67. 2. 124-124
  • Kuwahara Tomotaka, Hatano Naomichi. 21pED-1 Maximization of the thermal entanglement of indirectly interacting two qubits. Meeting abstracts of the Physical Society of Japan. 2011. 66. 2. 134-134
ｍore...
Lectures and oral presentations  (11)：
  • Clustering of conditional mutual information and quantum Markov structure at arbitrary temperatures
    (27th Annual Conference on Quantum Information Processing (QIP 2024) 2024)
  • Unifying speed limit and Lieb-Robinson bound: Wisdom from optimal transport
    (27th Annual Conference on Quantum Information Processing (QIP 2024) 2024)
  • Optimal light cone and digital quantum simulation of interacting bosons
    (26th Conference on Quantum Information Processing (QIP2023) 2023)
  • Exponential clustering of bipartite quantum entanglement at arbitrary temperatures
    (25th Annual Conference on Quantum Information Processing (QIP2022) 2022)
  • Lieb-Robinson bound and almost linear light cone in interacting boson systems
    (16th Conference on the Theory of Quantum Computation, Communication and Cryptography (TQC2021) 2021)
ｍore...
Education (3)：
  • 2012 - 2015 The University of Tokyo Faculty of Science, Department of Physics Ph.D. in Physics
  • 2010 - 2012 The University of Tokyo Faculty of Science, Department of Physics Master in Physics
  • 2008 - 2010 The University of Tokyo The Faculty of Engineering, Department of Applied Physics Bachelor in Applied Physics
Work history (5)：
  • 2022/04 - 現在 RIKEN RIKEN Cluster for Pioneering Research / RIKEN Center for Quantum Computing RIKEN Hakubi team leader
  • 2021/10 - 現在 Japan Science and Technology Agency Sakigake Researcher
  • 2017/10 - 2022/03 RIKEN Center for Advanced Intelligence Project Research scientist
  • 2016/01 - 2017/09 Tohoku University Advanced Institute for Materials Research (AIMR)
  • 2015/04 - 2015/12 The University of Tokyo JSPS Research Fellowship for Young Scientists (JSPS PD)
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