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Control of open quantum many-body systems via nonequilibrium driving

Research Project

Project/Area Number 19K14622
Research Category

Grant-in-Aid for Early-Career Scientists

Allocation TypeMulti-year Fund
Review Section Basic Section 13010:Mathematical physics and fundamental theory of condensed matter physics-related
Research InstitutionInstitute of Physical and Chemical Research

Principal Investigator

Mori Takashi  国立研究開発法人理化学研究所, 創発物性科学研究センター, 研究員 (00647761)

Project Period (FY) 2019-04-01 – 2023-03-31
Project Status Completed (Fiscal Year 2022)
Budget Amount *help
¥4,030,000 (Direct Cost: ¥3,100,000、Indirect Cost: ¥930,000)
Fiscal Year 2022: ¥1,040,000 (Direct Cost: ¥800,000、Indirect Cost: ¥240,000)
Fiscal Year 2021: ¥1,040,000 (Direct Cost: ¥800,000、Indirect Cost: ¥240,000)
Fiscal Year 2020: ¥1,170,000 (Direct Cost: ¥900,000、Indirect Cost: ¥270,000)
Fiscal Year 2019: ¥780,000 (Direct Cost: ¥600,000、Indirect Cost: ¥180,000)
Keywords開放量子系 / 非平衡統計力学 / 量子多体系 / フロケ理論 / リウビリアンギャップ / 緩和時間 / マルコフ過程 / 準安定状態 / 準周期外場 / フロケエンジニアリング / 線形応答理論 / リウビリアン / 非平衡定常状態 / 固有状態熱化仮説 / 非平衡系
Outline of Research at the Start

これまでの開放量子系の研究は、主に小さな量子系が環境と結合している状況を取り扱ってきた。しかし、近年の冷却原子系やイオントラップの実験の進展により、量子多体系と環境との結合を制御することが可能となり、制御された非平衡環境と結合した量子多体系がどのような量子状態に緩和するのかを理論的に明らかにすることが重要となってきた。
本研究ではこの問いに理論的にアプローチして、非平衡開放量子多体系の理解を目指す。特に、環境の非平衡性を積極的に利用することで、興味深い量子状態の実現を目指す。

Outline of Final Research Achievements

We have investigated general properties of quantum many-body systems under dissipation or external driving fields. We studied the steady state in many-body quantum system in a weak contact with a nonequilibrium environment. It is shown that the eigenstate thermalization hypothesis, which is an important property of isolated quantum systems, plays a key role in the steady state under dissipation. We also investigated how the relaxation time of open quantum many-body systems is determined from the spectral decomposition of the Liouvillian superoperator, which is a generator of the Markovian dissipative time evolution. Furthermore, we analytically calculated the energy absorption rate of quantum many-body systems subject to time-periodic, quasi-periodic, and random driving fields beyond the linear response regime.

Academic Significance and Societal Importance of the Research Achievements

散逸や外場駆動のもとでの量子多体系の非平衡ダイナミクスの一般的な性質を明らかにすることは、統計物理学、固体物理学、原子・分子・光科学、さらには高エネルギー物理、量子情報に至るまで、物理学の広い領域で重要となる基礎的な問題である。本研究は、このような量子多体系の非平衡ダイナミクスの一般的な性質のいくつかを明らかにしたもので、今後の量子物理学の発展にとって基礎的な成果を得ることができた。

Report

(5 results)
  • 2022 Annual Research Report   Final Research Report ( PDF )
  • 2021 Research-status Report
  • 2020 Research-status Report
  • 2019 Research-status Report
  • Research Products

    (25 results)

All 2023 2022 2021 2020 2019 Other

All Int'l Joint Research (5 results) Journal Article (7 results) (of which Int'l Joint Research: 2 results,  Peer Reviewed: 7 results,  Open Access: 3 results) Presentation (13 results) (of which Int'l Joint Research: 5 results,  Invited: 11 results)

  • [Int'l Joint Research] Bar-Ilan University(イスラエル)

    • Related Report
      2022 Annual Research Report
  • [Int'l Joint Research] National University of Singapore(シンガポール)

    • Related Report
      2022 Annual Research Report
  • [Int'l Joint Research] University of Geneva(スイス)

    • Related Report
      2022 Annual Research Report
  • [Int'l Joint Research] Imperial College London(英国)

    • Related Report
      2021 Research-status Report
  • [Int'l Joint Research] The Technical University of Munich/MCQST/Max-Planck Institute(ドイツ)

    • Related Report
      2021 Research-status Report
  • [Journal Article] Floquet States in Open Quantum Systems2023

    • Author(s)
      Takashi Mori
    • Journal Title

      Annual Review of Condensed Matter Physics

      Volume: 14 Issue: 1 Pages: 35-56

    • DOI

      10.1146/annurev-conmatphys-040721-015537

    • Related Report
      2022 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Quantum and classical Floquet prethermalization2023

    • Author(s)
      Wen Wei Ho, Takashi Mori, Dmitry Abanin, and Emanuele G. Dalla Torre
    • Journal Title

      Annals of Physics

      Volume: 454 Pages: 169297-169297

    • DOI

      10.1016/j.aop.2023.169297

    • Related Report
      2022 Annual Research Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Heating Rates under Fast Periodic Driving beyond Linear Response2022

    • Author(s)
      Mori Takashi
    • Journal Title

      Physical Review Letters

      Volume: 128 Issue: 5 Pages: 050604-050604

    • DOI

      10.1103/physrevlett.128.050604

    • Related Report
      2021 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] Rigorous Bounds on the Heating Rate in Thue-Morse Quasiperiodically and Randomly Driven Quantum Many-Body Systems2021

    • Author(s)
      Mori Takashi、Zhao Hongzheng、Mintert Florian、Knolle Johannes、Moessner Roderich
    • Journal Title

      Physical Review Letters

      Volume: 127 Issue: 5 Pages: 050602-050602

    • DOI

      10.1103/physrevlett.127.050602

    • Related Report
      2021 Research-status Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Metastability associated with many-body explosion of eigenmode expansion coefficients2021

    • Author(s)
      Mori Takashi
    • Journal Title

      Physical Review Research

      Volume: 3 Issue: 4 Pages: 043137-043137

    • DOI

      10.1103/physrevresearch.3.043137

    • Related Report
      2021 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] Resolving a Discrepancy between Liouvillian Gap and Relaxation Time in Boundary-Dissipated Quantum Many-Body Systems2020

    • Author(s)
      Mori Takashi、Shirai Tatsuhiko
    • Journal Title

      Physical Review Letters

      Volume: 125 Issue: 23 Pages: 230604-230604

    • DOI

      10.1103/physrevlett.125.230604

    • Related Report
      2020 Research-status Report
    • Peer Reviewed
  • [Journal Article] Thermalization in open many-body systems based on eigenstate thermalization hypothesis2020

    • Author(s)
      Tatsuhiko Shirai, Takashi Mori
    • Journal Title

      Physical Review E

      Volume: 101 Issue: 4 Pages: 042116-042116

    • DOI

      10.1103/physreve.101.042116

    • Related Report
      2019 Research-status Report
    • Peer Reviewed
  • [Presentation] 散逸と非平衡外場駆動の結合による量子制御の理論構築とその応用2023

    • Author(s)
      森貴司
    • Organizer
      第60回応用物理学会春季講演会
    • Related Report
      2022 Annual Research Report
    • Invited
  • [Presentation] 対称化リウビリアンを用いた開放量子系の緩和時間の解析2023

    • Author(s)
      森貴司
    • Organizer
      日本物理学会2023年春季大会
    • Related Report
      2022 Annual Research Report
  • [Presentation] Relaxation times in open quantum many-body systems2022

    • Author(s)
      Takashi Mori
    • Organizer
      The 15th Asia Pacific Physics Conference
    • Related Report
      2022 Annual Research Report
    • Invited
  • [Presentation] Relaxation times in open quantum many-body systems2022

    • Author(s)
      Takashi Mori
    • Organizer
      Quantum extreme universe from quantum information
    • Related Report
      2022 Annual Research Report
    • Invited
  • [Presentation] Liouvillian analysis of the relaxation time in open quantum systems2022

    • Author(s)
      Takashi Mori
    • Organizer
      Novel Quantum States in Condensed Matter 2022
    • Related Report
      2022 Annual Research Report
    • Invited
  • [Presentation] 開放量子多体系の物理の基礎2022

    • Author(s)
      森貴司
    • Organizer
      第4回冷却原子研究会「アトムの会」
    • Related Report
      2022 Annual Research Report
    • Invited
  • [Presentation] 速い周期外場によって強く駆動された多体系の加熱時間の評価2022

    • Author(s)
      森貴司
    • Organizer
      日本物理学会 第77回年次大会
    • Related Report
      2021 Research-status Report
  • [Presentation] Microscopic derivations of various quantum Markovian master equations2022

    • Author(s)
      Takashi Mori
    • Organizer
      Open Quantum Mechanics in Nuclear, Hadron and Condensed-Matter Systems
    • Related Report
      2021 Research-status Report
    • Int'l Joint Research / Invited
  • [Presentation] Spectral analysis of the relaxation time in open quantum many-body systems2021

    • Author(s)
      Takashi Mori
    • Organizer
      New Trends in Quantum Condensed Matter Theory
    • Related Report
      2021 Research-status Report
    • Int'l Joint Research / Invited
  • [Presentation] Heating rates under fast and strong periodic driving in classical and quantum many-body systems2021

    • Author(s)
      Takashi Mori
    • Organizer
      QTD 2021 Conference on Quantum Thermodynamics
    • Related Report
      2021 Research-status Report
    • Int'l Joint Research / Invited
  • [Presentation] 開放量子多体系の緩和時間とLiouvillianギャップ2020

    • Author(s)
      森貴司
    • Organizer
      量子多体系の熱力学--数理の発展と展望
    • Related Report
      2020 Research-status Report
    • Invited
  • [Presentation] Nonequilibrium steady states in weakly dissipative macroscopic quantum systems2019

    • Author(s)
      Takashi Mori
    • Organizer
      Fundamental Aspects of Statistical Mechanics and the Emergence of Thermodynamics in Non-Equilibrium Systems
    • Related Report
      2019 Research-status Report
    • Int'l Joint Research / Invited
  • [Presentation] Steady states of open systems and eigenstate thermalization hypothesis2019

    • Author(s)
      Takashi Mori
    • Organizer
      THERMALIZATION, MANY BODY LOCALIZATION AND HYDRODYNAMICS
    • Related Report
      2019 Research-status Report
    • Int'l Joint Research / Invited

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Published: 2019-04-18   Modified: 2024-01-30  

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