• Search Research Projects
  • Search Researchers
  • How to Use
  1. Back to previous page

Particle correlation effects and new phases of ultra cold Bose-Fermi mixtures

Research Project

Project/Area Number 18K03501
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 InstitutionRitsumeikan University

Principal Investigator

Hiroyuki Yabu  立命館大学, 理工学部, 教授 (60202371)

Co-Investigator(Kenkyū-buntansha) 宮川 貴彦  愛知教育大学, 教育学部, 准教授 (70439925)
仲野 英司  高知大学, 教育研究部自然科学系理工学部門, 准教授 (70582477)
Project Period (FY) 2018-04-01 – 2021-03-31
Project Status Completed (Fiscal Year 2020)
Budget Amount *help
¥2,340,000 (Direct Cost: ¥1,800,000、Indirect Cost: ¥540,000)
Fiscal Year 2020: ¥780,000 (Direct Cost: ¥600,000、Indirect Cost: ¥180,000)
Fiscal Year 2019: ¥780,000 (Direct Cost: ¥600,000、Indirect Cost: ¥180,000)
Fiscal Year 2018: ¥780,000 (Direct Cost: ¥600,000、Indirect Cost: ¥180,000)
Keywords極低温原子気体 / ボース・フェルミ混合気体 / 双極子相互作用 / ポーラロン / フェルミ縮退 / ボース・アインシュタイン凝縮 / 極低音原子気体 / 双極子原子 / ポーラロン フェルミ縮退 / フェルミ気体 / 原子気体 / 量子多体系
Outline of Final Research Achievements

In the present research, the intermediate correlation phenomena have been studied of the mixtures of two different ultracold atoms, the mixture of dipole atoms and atom-gas polarons. We constructed the theoretical methods based on many-body quantum theory, and studied the phase structures and the properties of these phenomena. For the mixture of dipole fermi atoms, the existence of the ALS structure phase and the hysteresis of the phase transition has been clarified. For the atom-gas polarons, we calculated the angular-momentum distribution of the trapped polaron. We also constructed the theory of the polaron in the aton gas with the dipole interactions, and show the properties of the dipole polaron.

Academic Significance and Societal Importance of the Research Achievements

冷却ボース・フェルミ混合気体を含む冷却原子気体の理論的実験的研究においては、これまで弱相関の場合の現象の解明が中心であったが、本研究では、より強い相関が存在する場合に理論的研究を行ない、双極子相互作用する原子を含む混合原子気体および原子気体ポーラロンの系に対して、新しい相構造が現れることを示し、その性質を明らかにした。これにより量子多体系理論の新たな知見を示したことが本研究の学術的意義である。現在、これらの系の実験的研究が進みつつあり、冷却原子系の新たな研究の出発点となりうるという意義も存在する。

Report

(4 results)
  • 2020 Annual Research Report   Final Research Report ( PDF )
  • 2019 Research-status Report
  • 2018 Research-status Report
  • Research Products

    (14 results)

All 2021 2020 2019 2018

All Journal Article (5 results) (of which Int'l Joint Research: 1 results,  Peer Reviewed: 5 results,  Open Access: 2 results) Presentation (9 results) (of which Int'l Joint Research: 2 results)

  • [Journal Article] Ground state of the polaron in an ultracold dipolar Fermi gas2021

    • Author(s)
      Nishimura Kazuya、Nakano Eiji、Iida Kei、Tajima Hiroyuki、Miyakawa Takahiko、Yabu Hiroyuki
    • Journal Title

      Physical Review A

      Volume: 103 Issue: 3 Pages: 1-1

    • DOI

      10.1103/physreva.103.033324

    • Related Report
      2020 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Collisional dynamics of polaronic clouds immersed in a Fermi sea2020

    • Author(s)
      Tajima Hiroyuki、Takahashi Junichi、Nakano Eiji、Iida Kei
    • Journal Title

      Physical Review A

      Volume: 102 Issue: 5 Pages: 1-1

    • DOI

      10.1103/physreva.102.051302

    • Related Report
      2020 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Phase separation in trapped dipolar Fermi gases2020

    • Author(s)
      Takahiko Miyakawa, Shin Nakamura, Hiroyuki Yabu
    • Journal Title

      PhysicalL Review

      Volume: A101 Issue: 3

    • DOI

      10.1103/physreva.101.033613

    • Related Report
      2019 Research-status Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Bose polaron in spherically symmetric trap potentials: Ground states with zero and lower angular momenta2019

    • Author(s)
      Kano Watanabe, Eiji Nakano, and Hiroyuki Yabu
    • Journal Title

      PHYSICAL REVIEW A

      Volume: 99 Issue: 3

    • DOI

      10.1103/physreva.99.033624

    • Related Report
      2018 Research-status Report
    • Peer Reviewed
  • [Journal Article] Spin polarized phases in strongly interacting matter: Interplay between axial-vector and tensor mean fields2018

    • Author(s)
      Tomoyuki Maruyama, Eiji Nakano, Kota Yanase and Naotaka Yoshinaga
    • Journal Title

      PHYSICAL REVIEW D

      Volume: 97-114014 Issue: 11 Pages: 1-10

    • DOI

      10.1103/physrevd.97.114014

    • Related Report
      2018 Research-status Report
    • Peer Reviewed / Open Access
  • [Presentation] スピン軌道相互作用を伴う量子不純物系の角運動量散逸Ⅱ2021

    • Author(s)
      畑知宏, 仲野英司, 田島裕之, 高橋淳一, 飯田圭
    • Organizer
      日本物理学会第76回年次大会
    • Related Report
      2020 Annual Research Report
  • [Presentation] 量子ダイナミクスからポーラロン間非局所相互作用を抽出する方法の提案2021

    • Author(s)
      高橋淳一, 田島裕之A, 仲野英司, 飯田圭
    • Organizer
      日本物理学会第76回年次大会
    • Related Report
      2020 Annual Research Report
  • [Presentation] ポーラロンクラウドの衝突ダイナミクス2020

    • Author(s)
      田島裕之, 高橋淳一, 仲野英司, 飯田圭
    • Organizer
      日本物理学会2020年秋季大会
    • Related Report
      2020 Annual Research Report
  • [Presentation] The ground state of a polaron in ultracold dipolar Fermi gases International symposium on Clustering as a Window on the Hierarchical Structure of Quantum Systems2020

    • Author(s)
      K. Nishimura, E.Nakano, K.Iida, H.Tajima, T.Miyakawa, H.Yabu
    • Organizer
      International symposium on Clustering as a Window on the Hierarchical Structure of Quantum Systems (CLUSHIQ2020)
    • Related Report
      2019 Research-status Report
    • Int'l Joint Research
  • [Presentation] スピン自由度をもつ量子不純物系のダイナミクス2020

    • Author(s)
      畑知宏, 仲野英司, 飯田圭, 藪博之
    • Organizer
      日本物理学会第75回年次学会
    • Related Report
      2019 Research-status Report
  • [Presentation] 双極子相互作用する冷却フェルミガス中のポーラロン基底状態Ⅱ2020

    • Author(s)
      西村和也, 仲野英司, 飯田圭, 田島裕之, 宮川貴彦, 藪博之
    • Organizer
      日本物理学会第75回年次学会
    • Related Report
      2019 Research-status Report
  • [Presentation] Two-component dipolar Fermi gases in a spherically symmetric harmonic trap2019

    • Author(s)
      Takahiko Miyakawa, Shin Nakamura, Hiroyuki Yabu
    • Organizer
      50th Annual Meeting of the APS Division of Atomic, Molecular and Optical Physics APS Meeting
    • Related Report
      2019 Research-status Report
    • Int'l Joint Research
  • [Presentation] トラップされた双極フェルミ混合気体の相分離2019

    • Author(s)
      宮川貴彦, 中村伸, 藪博之
    • Organizer
      日本物理学会2019年秋季大会
    • Related Report
      2019 Research-status Report
  • [Presentation] 双極子間相互作用する冷却フェルミガス中のポーラロン基底状態2019

    • Author(s)
      西村和也、仲野英司、飯田圭、宮川貴彦、藪博之
    • Organizer
      日本物理学会 第74回年次大会
    • Related Report
      2018 Research-status Report

URL: 

Published: 2018-04-23   Modified: 2022-01-27  

Information User Guide FAQ News Terms of Use Attribution of KAKENHI

Powered by NII kakenhi