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Macroscopic amplification of an ultra-small interaction in superfluid 3He

Research Project

Project/Area Number 26287084
Research Category

Grant-in-Aid for Scientific Research (B)

Allocation TypePartial Multi-year Fund
Section一般
Research Field Condensed matter physics II
Research InstitutionInstitute of Physical and Chemical Research

Principal Investigator

Ikegami Hiroki  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, 専任研究員 (70313161)

Co-Investigator(Kenkyū-buntansha) 石黒 亮輔  日本女子大学, 理学部, 准教授 (40433312)
Co-Investigator(Renkei-kenkyūsha) SATO Daisuke  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, 協力研究員 (00709363)
Project Period (FY) 2014-04-01 – 2018-03-31
Project Status Completed (Fiscal Year 2017)
Budget Amount *help
¥16,640,000 (Direct Cost: ¥12,800,000、Indirect Cost: ¥3,840,000)
Fiscal Year 2016: ¥2,600,000 (Direct Cost: ¥2,000,000、Indirect Cost: ¥600,000)
Fiscal Year 2015: ¥3,770,000 (Direct Cost: ¥2,900,000、Indirect Cost: ¥870,000)
Fiscal Year 2014: ¥10,270,000 (Direct Cost: ¥7,900,000、Indirect Cost: ¥2,370,000)
Keywords超流動ヘリウム3 / 時間反転対称性の破れ / カイラリティ / 巨視的量子現象 / 超低温 / 量子凝縮 / 巨視的増幅 / クーパー対
Outline of Final Research Achievements

In the A phase of the superfluid 3He, the Cooper pairs can have a very tiny interaction between their orbital angular momentum and an external magnetic field even though 3He-A consists of charge-neutral Cooper pairs. In order to examine this unusual interaction experimentally, we developed a ultra-low temperature cryostat with a high magnetic field and constructed an experimental setup.
We also conducted experimental studies of a 3He film formed of a surface of a 3He-4He mixture liquid. The 3He film should offer an ideal platform for examining the above-mentioned effect because it has a smooth surfaces at both surfaces. To investigate properties of the 3He film, we measured mobility of electrons trapped on the surface of the mixture liquid. We found that the mobility is dominated by reflection of ballistic 3He quasiparticles at the surface. Detailed analysis elucidated that 3He quasiparticles experience unusual reflection at the surface.

Report

(5 results)
  • 2017 Annual Research Report   Final Research Report ( PDF )
  • 2016 Annual Research Report
  • 2015 Annual Research Report
  • 2014 Annual Research Report
  • Research Products

    (33 results)

All 2018 2017 2016 2015 2014 Other

All Int'l Joint Research (5 results) Journal Article (4 results) (of which Peer Reviewed: 3 results,  Open Access: 1 results,  Acknowledgement Compliant: 2 results) Presentation (24 results) (of which Int'l Joint Research: 12 results,  Invited: 10 results)

  • [Int'l Joint Research] KAIST(韓国)

    • Related Report
      2017 Annual Research Report
  • [Int'l Joint Research] Insti. Low Temp. Physics and Engineering(ウクライナ)

    • Related Report
      2017 Annual Research Report
  • [Int'l Joint Research] KAIST(韓国)

    • Related Report
      2016 Annual Research Report
  • [Int'l Joint Research] Inst. Low Temp. Phys. and Eng.(ウクライナ)

    • Related Report
      2016 Annual Research Report
  • [Int'l Joint Research] KAIST(韓国)

    • Related Report
      2015 Annual Research Report
  • [Journal Article] 超流動3Heにおける輸送現象と相対論的準粒子2017

    • Author(s)
      池上弘樹、河野公俊、堤康雅
    • Journal Title

      固体物理

      Volume: 52 Pages: 11-21

    • Related Report
      2017 Annual Research Report
  • [Journal Article] Onset of Superfluidity in 3He Films2016

    • Author(s)
      Masamichi Saitoh, Hiroki Ikegami, and Kimitoshi Kono
    • Journal Title

      Physical Reviev Letters

      Volume: 84 Issue: 20 Pages: 195302-195302

    • DOI

      10.1103/physrevlett.117.205302

    • Related Report
      2017 Annual Research Report 2016 Annual Research Report
    • Peer Reviewed / Open Access / Acknowledgement Compliant
  • [Journal Article] 超流動3He-Aにおける時間反転対称性の破れと固有マグナス力2016

    • Author(s)
      池上弘樹、堤康雅、河野公俊
    • Journal Title

      日本物理学会誌

      Volume: 71 Pages: 679-687

    • NAID

      130006906735

    • Related Report
      2016 Annual Research Report
    • Peer Reviewed / Acknowledgement Compliant
  • [Journal Article] Observation of Intrinsic Magnus Force and Direct Detection of Chirality in Superfluid 3He-A2015

    • Author(s)
      Hiroki Ikegami, Yasumasa Tsutsumi, and Kimitoshi Kono
    • Journal Title

      J. Phys. Soc. Jpn.

      Volume: 84 Issue: 4 Pages: 044602-044602

    • DOI

      10.7566/jpsj.84.044602

    • NAID

      210000133514

    • Related Report
      2014 Annual Research Report
    • Peer Reviewed
  • [Presentation] Topological Phenomena and Relativistic Fermions in Superfluid 3He2018

    • Author(s)
      Hiroki Ikegami
    • Organizer
      International Symposium on Dynamics in Artificial Quantum Systems (DAQS2018)
    • Related Report
      2017 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] Topological phenomena of superfluid 3He studied by ions trapped at the surface2018

    • Author(s)
      Hiroki Ikegami
    • Organizer
      The International Workshop on Electrons and Ions in Quantum Fluids and Solids
    • Related Report
      2017 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] Anomalous Quasiparticle Reflection from the Surface of a 3He-4He Dilute Solution2018

    • Author(s)
      Kitak Kim, Hiroki Ikegami, Daisuke Sato, Kimitoshi Kono, and Yuriy P. Monarkha, Hyoungsoon Choi
    • Organizer
      10th BK21+ Young Physicists Workshop
    • Related Report
      2017 Annual Research Report
  • [Presentation] Anomalous Quasiparticle Reflection from the Surface of a 3He-4He Dilute Solution2018

    • Author(s)
      Kitak Kim, Hiroki Ikegami, Daisuke Sato, Kimitoshi Kono, and Yuriy P. Monarkha, Hyoungsoon Choi
    • Organizer
      SRC Winter Workshop on Quantum Coherence
    • Related Report
      2017 Annual Research Report
  • [Presentation] Topological aspects of superfluid 3He investigated by ions trapped at the surface2017

    • Author(s)
      池上弘樹
    • Organizer
      March Meeting 2017 of the American Physical Society (APS)
    • Place of Presentation
      New Orleans(アメリカ)
    • Year and Date
      2017-03-16
    • Related Report
      2016 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] Anomalous Enhancement of Mobility of a Wigner Crystal on a Free Surface of Dilute 3He-4He Mixtures2017

    • Author(s)
      Hiroki Ikegami, Kitak Kim, Hyoungsoon Choi, Daisuke Sato, Kimitoshi Kono, and Yuriy P. Monarkha
    • Organizer
      28th International Conference on Low Temperature Physics (LT28)
    • Related Report
      2017 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Mobility of Electrons on 3He-4He Mixture2016

    • Author(s)
      池上弘樹
    • Organizer
      International Symposium on Quantum Fluids and Solids (QFS2016)
    • Place of Presentation
      Prague(チェコ)
    • Year and Date
      2016-08-12
    • Related Report
      2016 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Coupling of the Wigner Crystal with Liquid Helium 4 under Sliding Condition2016

    • Author(s)
      佐藤大輔、池上弘樹、奥田雄一、河野公俊
    • Organizer
      International Symposium on Quantum Fluids and Solids (QFS2016)
    • Place of Presentation
      Prague(チェコ)
    • Year and Date
      2016-08-12
    • Related Report
      2016 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Unusual Aspects of Superfluid 3He Elucidated by Electrons at Surface2016

    • Author(s)
      池上弘樹
    • Organizer
      SCCP Seminar, Shanghai Jiao Tong University
    • Place of Presentation
      Shanghai(中国)
    • Year and Date
      2016-08-08
    • Related Report
      2016 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] 表面電荷で探る超流動3Heの対称性の破れとトポロジー2016

    • Author(s)
      池上弘樹
    • Organizer
      名古屋大学大学院 IGERセミナー
    • Place of Presentation
      名古屋
    • Year and Date
      2016-04-27
    • Related Report
      2016 Annual Research Report
    • Invited
  • [Presentation] 3He-4He混合液自由表面上の電子の移動度II2016

    • Author(s)
      池上弘樹
    • Organizer
      日本物理学会第70回年次大会
    • Place of Presentation
      東北学院大学(仙台)
    • Year and Date
      2016-03-21
    • Related Report
      2015 Annual Research Report
  • [Presentation] Topological Aspects of Superfluid 3He Detected by Electrons at Surface2016

    • Author(s)
      池上弘樹
    • Organizer
      International Symposium on Dynamics in Artificial Quantum Systems (DAQS2016)
    • Place of Presentation
      東京大学(東京)
    • Year and Date
      2016-01-12
    • Related Report
      2015 Annual Research Report
    • Int'l Joint Research
  • [Presentation] 超流動3He-Aのカイラリティと固有マグナス力2015

    • Author(s)
      池上弘樹
    • Organizer
      日本物理学会2015年秋季大会 シンポジウム「多自由度性が織りなす異方的超流体の新しい物理」
    • Place of Presentation
      関西大学(大阪)
    • Year and Date
      2015-09-18
    • Related Report
      2015 Annual Research Report
    • Invited
  • [Presentation] Time-Reversal Symmetry Breaking and Intrinsic Magnus Force in Superfluid 3He-A2015

    • Author(s)
      池上弘樹
    • Organizer
      International Symposium on Quantum Fluids and Solids (QFS2015)
    • Place of Presentation
      Niagara Falls(アメリカ)
    • Year and Date
      2015-08-09
    • Related Report
      2015 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] Mobility of Electrons on 3He-4He Mixture2015

    • Author(s)
      池上弘樹
    • Organizer
      International Symposium on Quantum Fluids and Solids (QFS2015)
    • Place of Presentation
      Niagara Falls(アメリカ)
    • Year and Date
      2015-08-09
    • Related Report
      2015 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Coupling of the Wigner Solid with Liquid 3He Surface2015

    • Author(s)
      佐藤大輔、池上弘樹、河野公俊
    • Organizer
      International Symposium on Quantum Fluids and Solids (QFS2015)
    • Place of Presentation
      Niagara Falls(アメリカ)
    • Year and Date
      2015-08-09
    • Related Report
      2015 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Direct Detection of Chirality in Superfluid 3He-A2015

    • Author(s)
      池上弘樹
    • Organizer
      Energy, Materials and Nanotechnology meeting (EMT Meeting)
    • Place of Presentation
      Qingdao(中国)
    • Year and Date
      2015-06-14
    • Related Report
      2015 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] Time-Reversal Symmetry Breaking and Intrinsic Magnus Force in Superfluid 3He-A2015

    • Author(s)
      池上弘樹
    • Organizer
      IGER International Symposium 2015: Spins in Action
    • Place of Presentation
      名古屋
    • Year and Date
      2015-03-26
    • Related Report
      2014 Annual Research Report
    • Invited
  • [Presentation] 3He-4He混合液自由表面上の電子の移動度2015

    • Author(s)
      池上弘樹
    • Organizer
      日本物理学会第68回年次大会
    • Place of Presentation
      東京
    • Year and Date
      2015-03-24
    • Related Report
      2014 Annual Research Report
  • [Presentation] 超流動3He-Aにおけるカイラリティ2015

    • Author(s)
      池上弘樹
    • Organizer
      広島大学研究会
    • Place of Presentation
      広島
    • Year and Date
      2015-02-27
    • Related Report
      2014 Annual Research Report
  • [Presentation] Direct Detection of Chirality in Superfluid 3He-A2014

    • Author(s)
      池上弘樹
    • Organizer
      International Conference on Topological Quantum Phenomena (TQP2014)
    • Place of Presentation
      京都
    • Year and Date
      2014-12-17
    • Related Report
      2014 Annual Research Report
    • Invited
  • [Presentation] Observation of Chiral Domain Walls at the Free Surface of Superfluid 3He-A2014

    • Author(s)
      池上弘樹
    • Organizer
      27th International Conference on Low Temperature Physics (LT26)
    • Place of Presentation
      ブエノスアイレス
    • Year and Date
      2014-08-07
    • Related Report
      2014 Annual Research Report
  • [Presentation] Direct Detection Chirality in Superfluid 3He-A2014

    • Author(s)
      池上弘樹
    • Organizer
      The international workshop "Higgs Modes in Condensed Matter and Quantum Gases
    • Place of Presentation
      京都
    • Year and Date
      2014-06-24
    • Related Report
      2014 Annual Research Report
  • [Presentation] 超流動3He-Aにおけるカイラリティの直接観測2014

    • Author(s)
      池上弘樹
    • Organizer
      物性研短期研究会「スーパーマターが拓く新量子現象」
    • Place of Presentation
      柏
    • Year and Date
      2014-04-18
    • Related Report
      2014 Annual Research Report

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Published: 2014-04-04   Modified: 2020-05-15  

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