Kuwahara Tomotaka 桑原知剛

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桑原知剛

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Researcher Number	70757773
Other IDs
Affiliation (Current)	2025: 国立研究開発法人理化学研究所, 量子コンピュータ研究センター, 理研白眉研究チームリーダー
Affiliation (based on the past Project Information) *help	2023 – 2025: 国立研究開発法人理化学研究所, 量子コンピュータ研究センター, 理研白眉研究チームリーダー 2018 – 2021: 国立研究開発法人理化学研究所, 革新知能統合研究センター, 研究員
Review Section/Research Field	Principal Investigator Basic Section 13010:Mathematical physics and fundamental theory of condensed matter physics-related Except Principal Investigator Basic Section 13010:Mathematical physics and fundamental theory of condensed matter physics-related / Broad Section J
Keywords	Principal Investigator 縮約アルゴリズム / 多体問題 / エントロピー / 量子ギブスサンプリング / 量子シミュレーション / トポロジカル秩序 / 量子情報 / 情報理論 / Area law conjecture / 密度行列繰り込み群法 … More / 基底状態 / 計算複雑性 / エンタングルメント / 情報 / 量子多体系 / 長距離量子もつれ / クラスタリング定理 / 有限温度 / 熱平衡状態 / テンソルネットワーク / 境界則 / リープ・ロビンソン限界 / 量子コンピュータ / 長距離相互作用系 / 量子もつれ / ハミルトニアン複雑性 … More Except Principal Investigator 情報伝搬 / 速度限界 / 非平衡熱力学 / 量子多体複雑性 / 計算量理論 / セキュア量子プロトコル / 分散型量子計算 Less

Foundations of Secure Distributed Quantum Computing on Medium-Scale Quantum Computers
- Principal Investigator
  
  ルガルフランソワ
- Project Period (FY)
  2024 – 2028
- Research Category
  
  Grant-in-Aid for Scientific Research (S)
- Review Section
  
  Broad Section J
- Research Institution
  Nagoya University
速度限界と情報伝播に関する理論的研究
- Principal Investigator
  
  齊藤圭司
- Project Period (FY)
  2023 – 2026
- Research Category
  
  Grant-in-Aid for Scientific Research (B)
- Review Section
  
  Basic Section 13010:Mathematical physics and fundamental theory of condensed matter physics-related
- Research Institution
  Kyoto University
Computational complexity of quantum many-body problem in terms of Tensor Network formalismPrincipal Investigator
- Principal Investigator
  
  Kuwahara Tomotaka
- Project Period (FY)
  2018 – 2021
- Research Category
  
  Grant-in-Aid for Early-Career Scientists
- Review Section
  
  Basic Section 13010:Mathematical physics and fundamental theory of condensed matter physics-related
- Research Institution
  Institute of Physical and Chemical Research

All 2022 2021 2020 2018

All Journal Article Presentation

[Journal Article] Exponential Clustering of Bipartite Quantum Entanglement at Arbitrary Temperatures2022
- Author(s)
  Kuwahara Tomotaka、Saito Keiji
- Journal Title
  
  Physical Review X
  
  Volume: 12 Issue: 2 Pages: 021022-021022
- DOI
  10.1103/physrevx.12.021022
- Peer Reviewed / Open Access
- Data Source
  KAKENHI-PROJECT-18K13475, KAKENHI-PROJECT-19H05603, KAKENHI-PLANNED-19H05791
[Journal Article] Fate of Measurement-Induced Phase Transition in Long-Range Interactions2022
- Author(s)
  Minato Takaaki、Sugimoto Koudai、Kuwahara Tomotaka、Saito Keiji
- Journal Title
  
  Physical Review Letters
  
  Volume: 128 Issue: 1 Pages: 010603-010603
- DOI
  10.1103/physrevlett.128.010603
- Peer Reviewed
- Data Source
  KAKENHI-PROJECT-18K13475, KAKENHI-PROJECT-19K14644, KAKENHI-PROJECT-19H05603, KAKENHI-PROJECT-20H01849, KAKENHI-PLANNED-19H05791
[Journal Article] Many-body scar state intrinsic to periodically driven system2021
- Author(s)
  Sho Sugiura, Tomotaka Kuwahara, Keiji Saito
- Journal Title
  
  Physical Review Research (Letter)
  
  Volume: 3 Issue: 1
- DOI
  10.1103/physrevresearch.3.l012010
- Peer Reviewed / Open Access
- Data Source
  KAKENHI-PROJECT-18K13475, KAKENHI-PROJECT-16H02211
[Journal Article] Absence of Fast Scrambling in Thermodynamically Stable Long-Range Interacting Systems2021
- Author(s)
  Tomotaka Kuwahara, Keiji Saito
- Journal Title
  
  Physical Review Letters
  
  Volume: 126 Issue: 3 Pages: 030604-030604
- DOI
  10.1103/physrevlett.126.030604
- Peer Reviewed
- Data Source
  KAKENHI-PROJECT-18K13475, KAKENHI-PROJECT-19H05603, KAKENHI-PROJECT-16H02211
[Journal Article] Sample-efficient learning of interacting quantum systems2021
- Author(s)
  Anshu Anurag、Arunachalam Srinivasan、Kuwahara Tomotaka、Soleimanifar Mehdi
- Journal Title
  
  Nature Physics
  
  Volume: 17 Issue: 8 Pages: 931-935
- DOI
  10.1038/s41567-021-01232-0
- Peer Reviewed / Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-18K13475
[Journal Article] Lieb-Robinson Bound and Almost-Linear Light Cone in Interacting Boson Systems2021
- Author(s)
  Kuwahara Tomotaka、Saito Keiji
- Journal Title
  
  Physical Review Letters
  
  Volume: 127 Issue: 7 Pages: 070403-070403
- DOI
  10.1103/physrevlett.127.070403
- Peer Reviewed
- Data Source
  KAKENHI-PROJECT-18K13475, KAKENHI-PROJECT-19H05603
[Journal Article] Improved Thermal Area Law and Quasilinear Time Algorithm for Quantum Gibbs States2021
- Author(s)
  Tomotaka Kuwahara, Alvaro Alhambra, Anurag Anshu
- Journal Title
  
  Physical Review X
  
  Volume: 11 Issue: 1 Pages: 011047-011047
- DOI
  10.1103/physrevx.11.011047
- Peer Reviewed / Open Access / Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-18K13475
[Journal Article] Gaussian concentration bound and Ensemble equivalence in generic quantum many-body systems including long-range interactions2020
- Author(s)
  Tomotaka Kuwahara, Keiji Saito
- Journal Title
  
  Annals of Physics
  
  Volume: 421 Pages: 168278-168278
- DOI
  10.1016/j.aop.2020.168278
- Peer Reviewed
- Data Source
  KAKENHI-PROJECT-18K13475
[Journal Article] Area law of noncritical ground states in 1D long-range interacting systems2020
- Author(s)
  Tomotaka Kuwahara, Keiji Saito
- Journal Title
  
  Nature Communications
  
  Volume: 11 Issue: 1 Pages: 4478-4478
- DOI
  10.1038/s41467-020-18055-x
- Peer Reviewed / Open Access
- Data Source
  KAKENHI-PROJECT-18K13475, KAKENHI-PROJECT-19H05603, KAKENHI-PROJECT-16H02211
[Journal Article] Clustering of Conditional Mutual Information for Quantum Gibbs States above a Threshold Temperature2020
- Author(s)
  Tomotaka Kuwahara, Kohtaro Kato, Fernando Brandao
- Journal Title
  
  Physical Review Letters
  
  Volume: 124 Issue: 22 Pages: 220601-220601
- DOI
  10.1103/physrevlett.124.220601
- Peer Reviewed / Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-18K13475
[Journal Article] Clustering of conditional mutual information for quantum Gibbs states above a threshold temperature2020
- Author(s)
  Tomotaka Kuwahara, Kohtaro Kato, Fernando Brandao
- Journal Title
  
  Physical Review Letters
  
  Volume: -
- Peer Reviewed
- Data Source
  KAKENHI-PROJECT-18K13475
[Journal Article] Eigenstate Thermalization from the Clustering Property of Correlation2020
- Author(s)
  Tomotaka Kuwahara, Keiji Saito
- Journal Title
  
  Physical Review Letters
  
  Volume: 124 Issue: 20 Pages: 200604-200604
- DOI
  10.1103/physrevlett.124.200604
- Peer Reviewed
- Data Source
  KAKENHI-PROJECT-18K13475, KAKENHI-PROJECT-16H02211
[Journal Article] Strictly Linear Light Cones in Long-Range Interacting Systems of Arbitrary Dimensions2020
- Author(s)
  Tomotaka Kuwahara, Keiji Saito
- Journal Title
  
  Physical Review X
  
  Volume: 10 Issue: 3 Pages: 031010-031010
- DOI
  10.1103/physrevx.10.031010
- Peer Reviewed / Open Access
- Data Source
  KAKENHI-PROJECT-18K13475, KAKENHI-PROJECT-19H05603, KAKENHI-PROJECT-16H02211, KAKENHI-PLANNED-19H05791
[Journal Article] Heating in Integrable Time-Periodic Systems2018
- Author(s)
  石井隆、桑原知剛、森貴司、羽田野直道
- Journal Title
  
  Physical Review Letters
  
  Volume: 120 Issue: 22 Pages: 220602-220602
- DOI
  10.1103/physrevlett.120.220602
- Peer Reviewed
- Data Source
  KAKENHI-PROJECT-18K13475
[Presentation] Exponential clustering of bipartite quantum entanglement at arbitrary temperatures2022
- Author(s)
  Tomotaka Kuwahara
- Organizer
  QIP 2022, 25th Annual Conference on Quantum Information Processing
- Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-18K13475
[Presentation] Sample-efficient learning of interacting quantum systems2021
- Author(s)
  Tomotaka Kuwahara, Alvaro Alhambra, Anurag Anshu
- Organizer
  QIP 2021, 24th Annual Conference on Quantum Information Processing
- Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-18K13475
[Presentation] ハミルトニアン学習のサンプル複雑性2021
- Author(s)
  桑原知剛
- Organizer
  コンピュテーション研究会
- Invited
- Data Source
  KAKENHI-PROJECT-18K13475
[Presentation] Lieb-Robinson bound and almost linear light cone in interacting boson systems2021
- Author(s)
  Tomotaka Kuwahara
- Organizer
  TQC 2021, 16th Conference on the Theory of Quantum Computation, Communication and Cryptography
- Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-18K13475
[Presentation] Information propagation in long-range interacting systems2021
- Author(s)
  Tomotaka Kuwahara
- Organizer
  YITP workshop, Recent progress in theoretical physics based on quantum information theory
- Invited / Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-18K13475
[Presentation] Improved Thermal Area Law and Quasilinear Time Algorithm for Quantum Gibbs States2021
- Author(s)
  Anurag Anshu, Srinivasan Arunachalam, Tomotaka Kuwahara, Mehdi Soreimanifar
- Organizer
  QIP 2021, 24th Annual Conference on Quantum Information Processing
- Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-18K13475
[Presentation] Strictly Linear Light Cones in Long-Range Interacting Systems of Arbitrary Dimensions2020
- Author(s)
  Tomotaka Kuwahara, Keiji Saito
- Organizer
  TQC 2020, 15th Conference on the Theory of Quantum Computation, Communication and Cryptography
- Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-18K13475
[Presentation] Area law and clustering of information in non-critical long-range interacting systems2020
- Author(s)
  桑原知剛
- Organizer
  23rd Annual Conference on Quantum Information Processing (QIP2020)
- Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-18K13475
[Presentation] 長距離相互作用系における厳密な線形光円錐2020
- Author(s)
  桑原知剛
- Organizer
  量子多体系の熱力学ーー数理の発展と展望
- Invited
- Data Source
  KAKENHI-PROJECT-18K13475
[Presentation] Sample-efficient learning of interacting quantum systems2020
- Author(s)
  Anurag Anshu, Srinivasan Arunachalam, Tomotaka Kuwahara, Mehdi Soreimanifar
- Organizer
  The 61st Annual Symposium on Foundations of Computer Science (FOCS 2020)
- Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-18K13475
[Presentation] Area law and clustering of information in non-critical long-range interacting systems2020
- Author(s)
  Tomotaka Kuwahara, Kohtaro Kato, Keiji Saito, Fernando Brandao
- Organizer
  QIP 2020, 23rd Annual Conference on Quantum Information Processing
- Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-18K13475
[Presentation] 量子多体系の複雑性の情報論的解析2020
- Author(s)
  桑原知剛
- Organizer
  物理工学の新展開
- Invited
- Data Source
  KAKENHI-PROJECT-18K13475
[Presentation] Heating in integrable time-periodic systems2018
- Author(s)
  桑原知剛
- Organizer
  Symposium on Floquet Theory : Fundamentals and Applications
- Invited / Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-18K13475

1. ルガルフランソワ (50584299)

# of Collaborated Projects: 1 results

# of Collaborated Products: 0 results
2. 河内亮周 (00397035)

# of Collaborated Projects: 1 results

# of Collaborated Products: 0 results
3. 田中圭介 (20334518)

# of Collaborated Projects: 1 results

# of Collaborated Products: 0 results
4. 安永憲司 (50510004)

# of Collaborated Projects: 1 results

# of Collaborated Products: 0 results
5. 西村治道 (70433323)

# of Collaborated Projects: 1 results

# of Collaborated Products: 0 results
6. 齊藤圭司 (90312983)

# of Collaborated Projects: 1 results

# of Collaborated Products: 0 results

Kuwahara Tomotaka 桑原 知剛

桑原知剛

Research Projects

Research Products

Co-Researchers

Foundations of Secure Distributed Quantum Computing on Medium-Scale Quantum Computers

Principal Investigator

Project Period (FY)

Research Category

Review Section

Research Institution

速度限界と情報伝播に関する理論的研究

Principal Investigator

Project Period (FY)

Research Category

Review Section

Research Institution

Computational complexity of quantum many-body problem in terms of Tensor Network formalismPrincipal Investigator

Principal Investigator

Project Period (FY)

Research Category

Review Section

Research Institution

[Journal Article] Exponential Clustering of Bipartite Quantum Entanglement at Arbitrary Temperatures2022

Author(s)

Journal Title

DOI

Data Source

[Journal Article] Fate of Measurement-Induced Phase Transition in Long-Range Interactions2022

Author(s)

Journal Title

DOI

Data Source

[Journal Article] Many-body scar state intrinsic to periodically driven system2021

Author(s)

Journal Title

DOI

Data Source

[Journal Article] Absence of Fast Scrambling in Thermodynamically Stable Long-Range Interacting Systems2021

Author(s)

Journal Title

DOI

Data Source

[Journal Article] Sample-efficient learning of interacting quantum systems2021

Author(s)

Journal Title

DOI

Data Source

[Journal Article] Lieb-Robinson Bound and Almost-Linear Light Cone in Interacting Boson Systems2021

Author(s)

Journal Title

DOI

Data Source

[Journal Article] Improved Thermal Area Law and Quasilinear Time Algorithm for Quantum Gibbs States2021

Author(s)

Journal Title

DOI

Data Source

[Journal Article] Gaussian concentration bound and Ensemble equivalence in generic quantum many-body systems including long-range interactions2020

Author(s)

Journal Title

DOI

Data Source

[Journal Article] Area law of noncritical ground states in 1D long-range interacting systems2020

Author(s)

Journal Title

DOI

Data Source

[Journal Article] Clustering of Conditional Mutual Information for Quantum Gibbs States above a Threshold Temperature2020

Author(s)

Journal Title

DOI

Data Source

[Journal Article] Clustering of conditional mutual information for quantum Gibbs states above a threshold temperature2020

Author(s)

Journal Title

Data Source

[Journal Article] Eigenstate Thermalization from the Clustering Property of Correlation2020

Author(s)

Journal Title

Kuwahara Tomotaka 桑原知剛

[Presentation] 長距離相互作用系における厳密な線形光円錐2020