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Quantum many-body calculations of ultracold atoms using deep neural networks

Research Project

Project/Area Number 20K03804
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeMulti-year Fund
Section一般
Review Section Basic Section 13020:Semiconductors, optical properties of condensed matter and atomic physics-related
Research InstitutionThe University of Electro-Communications

Principal Investigator

Saito Hiroki  電気通信大学, 大学院情報理工学研究科, 教授 (60334497)

Project Period (FY) 2020-04-01 – 2023-03-31
Project Status Completed (Fiscal Year 2022)
Budget Amount *help
¥4,290,000 (Direct Cost: ¥3,300,000、Indirect Cost: ¥990,000)
Fiscal Year 2022: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000)
Fiscal Year 2021: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000)
Fiscal Year 2020: ¥1,690,000 (Direct Cost: ¥1,300,000、Indirect Cost: ¥390,000)
Keywordsボース・アインシュタイン凝縮 / 量子渦 / 機械学習 / 強化学習 / 冷却原子 / ニューラルネットワーク / 量子多体系 / 深層学習
Outline of Research at the Start

近年の人工知能技術の進展は目覚ましい。例えば「AlphaGo」と呼ばれるシステムが、囲碁の世界チャンピオンを打ち負かしたというニュースは記憶に新しい。そこでは深層ニューラルネットワークと機械学習の技術が用いられており、膨大な囲碁の盤面の情報が効率良くネットワークに収められている。
これを量子多体問題に応用しようというのが本研究計画である。量子多体状態を単純に計算機で表現しようとすると膨大なメモリが必要となり、手に負えなくなる。これを克服するために、上記の技術を利用し、機械学習の手法を用いて深層ニューラルネットワークに量子多体状態を効率よく収め、量子多体問題を解くことを目指す。

Outline of Final Research Achievements

Recently, technologies of artificial intelligence and machine learning have been developping rapidly. In this research project, I applied methods of machine learning to the system of ultracold atoms. I used the reinforcement learning to create desired states of the system by controlling an external potential. As a result, I found that the desired vortex states can be generated in a Bose-Einstein condensate by controlling the external potential. I also found a method to create skyrmions in a Bose-Einstein condensate hydrodynamically.

Academic Significance and Societal Importance of the Research Achievements

冷却原子系は量子力学的現象を研究する上で非常に理想的な物理系である。その理由は超低温でクリーンであるというばかりでなく、制御性が高いということが大きな理由として挙げられる。これまで、粒子間相互作用や外部ポテンシャルなどを制御することによって多くの量子力学的な物理現象がこの系で調べられてきた。本研究は、強化学習の手法を用いて、これらのパラメータを時間の関数としてどのように制御すれば望みの状態が得られるかという問いに答えたものであり、冷却原子系の制御性をより高めたという意義を持つ。

Report

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

    (17 results)

All 2023 2022 2021 2020 Other

All Int'l Joint Research (3 results) Journal Article (8 results) (of which Int'l Joint Research: 3 results,  Peer Reviewed: 8 results,  Open Access: 2 results) Presentation (6 results) (of which Int'l Joint Research: 1 results)

  • [Int'l Joint Research] Quaid-i-Azam University(パキスタン)

    • Related Report
      2022 Annual Research Report
  • [Int'l Joint Research] Chongqing Normal University(中国)

    • Related Report
      2022 Annual Research Report
  • [Int'l Joint Research] 陝西科学技術大学(中国)

    • Related Report
      2021 Research-status Report
  • [Journal Article] Dynamics of spin-nematic bright solitary waves in spin-tensor-momentum coupled Bose-Einstein condensates2023

    • Author(s)
      Qiu Xu、Hu Ai-Yuan、Cai Yongyong、Saito Hiroki、Zhang Xiao-Fei、Wen Lin
    • Journal Title

      Physical Review A

      Volume: 107 Issue: 3

    • DOI

      10.1103/physreva.107.033308

    • Related Report
      2022 Annual Research Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Rossby-Haurwitz Wave in a Rotating Bubble-Shaped Bose-Einstein Condensate2023

    • Author(s)
      Saito Hiroki、Hayashi Masazumi
    • Journal Title

      Journal of the Physical Society of Japan

      Volume: 92 Issue: 4

    • DOI

      10.7566/jpsj.92.044003

    • Related Report
      2022 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Phase separation and multistability of a two-component Bose-Einstein condensate in an optical cavity2022

    • Author(s)
      Ali Abid、Saif Farhan、Saito Hiroki
    • Journal Title

      Physical Review A

      Volume: 105 Issue: 6

    • DOI

      10.1103/physreva.105.063318

    • Related Report
      2022 Annual Research Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Long-lifetime supersolid in a two-component dipolar Bose-Einstein condensate2022

    • Author(s)
      Li Shaoxiong、Le Uyen Ngoc、Saito Hiroki
    • Journal Title

      Physical Review A

      Volume: 105 Issue: 6

    • DOI

      10.1103/physreva.105.l061302

    • Related Report
      2022 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Hydrodynamic generation of skyrmions in a two-component Bose-Einstein condensate2022

    • Author(s)
      Kyoshiro Sakaguchi, Keisuke Jimbo, and Hiroki Saito
    • Journal Title

      Physical Review A

      Volume: 105 Issue: 1

    • DOI

      10.1103/physreva.105.013312

    • Related Report
      2021 Research-status Report
    • Peer Reviewed
  • [Journal Article] Spin-orbit-coupled Bose gases with nonlocal Rydberg interactions held under a toroidal trap2022

    • Author(s)
      Xiao-Fei Zhang, Lin Wen, Lin-Xue Wang, G.-P. Chen, R.-B. Tan, and Hiroki Saito
    • Journal Title

      Physical Review A

      Volume: 105 Issue: 3

    • DOI

      10.1103/physreva.105.033306

    • Related Report
      2021 Research-status Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Surfactant behavior in three-component Bose-Einstein condensates2021

    • Author(s)
      Keisuke Jimbo and Hiroki Saito
    • Journal Title

      Physical Review A

      Volume: 103 Issue: 6

    • DOI

      10.1103/physreva.103.063323

    • Related Report
      2021 Research-status Report
    • Peer Reviewed
  • [Journal Article] Creation and Manipulation of Quantized Vortices in Bose-Einstein Condensates Using Reinforcement Learning2020

    • Author(s)
      Hiroki Saito
    • Journal Title

      Journal of the Physical Society of Japan

      Volume: 89 Issue: 7 Pages: 074006-074006

    • DOI

      10.7566/jpsj.89.074006

    • NAID

      40022283370

    • Related Report
      2020 Research-status Report
    • Peer Reviewed / Open Access
  • [Presentation] Long Lifetime Supersolid of Two Component Dipolar BEC2022

    • Author(s)
      Shaoxiong Li, Hiroki Saito
    • Organizer
      29th International Conference on Low Temperature Physics
    • Related Report
      2022 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Supersolid of Two-Component Dipolar Bose-Einstein Condensate2022

    • Author(s)
      Shaoxiong Li, Uyen Le, Hiroki Saito
    • Organizer
      日本物理学会2022年秋期大会
    • Related Report
      2022 Annual Research Report
  • [Presentation] 2成分 BEC 中における障害物ポテンシャル後方での Skyrmion 生成2022

    • Author(s)
      坂口京志郎, 神保圭佑, 斎藤弘樹
    • Organizer
      日本物理学会第77回年次大会
    • Related Report
      2021 Research-status Report
  • [Presentation] Phase separation and optical multistability of two-component Bose-Einstein condensate in an optical cavity2022

    • Author(s)
      Abid Ali, 斎藤弘樹
    • Organizer
      日本物理学会第77回年次大会
    • Related Report
      2021 Research-status Report
  • [Presentation] 3成分BECにおける界面活性剤的振る舞い2021

    • Author(s)
      神保圭介, 斎藤弘樹
    • Organizer
      日本物理学会2021年秋期大会
    • Related Report
      2021 Research-status Report
  • [Presentation] 超流動体の乱流状態におけるKolmogorov-Hinze スケール2021

    • Author(s)
      門倉強, 斎藤弘樹
    • Organizer
      日本物理学会第76回年次大会
    • Related Report
      2020 Research-status Report

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Published: 2020-04-28   Modified: 2024-01-30  

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