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Elucidation of microscopic dynamics of quantum vortex in superfluid helium

Research Project

Project/Area Number 18K13503
Research Category

Grant-in-Aid for Early-Career Scientists

Allocation TypeMulti-year Fund
Review Section Basic Section 13030:Magnetism, superconductivity and strongly correlated systems-related
Research InstitutionKeio University

Principal Investigator

Nago Yusuke  慶應義塾大学, 理工学部(矢上), 助教 (50623435)

Project Period (FY) 2018-04-01 – 2021-03-31
Project Status Completed (Fiscal Year 2020)
Budget Amount *help
¥4,030,000 (Direct Cost: ¥3,100,000、Indirect Cost: ¥930,000)
Fiscal Year 2020: ¥520,000 (Direct Cost: ¥400,000、Indirect Cost: ¥120,000)
Fiscal Year 2019: ¥1,170,000 (Direct Cost: ¥900,000、Indirect Cost: ¥270,000)
Fiscal Year 2018: ¥2,340,000 (Direct Cost: ¥1,800,000、Indirect Cost: ¥540,000)
Keywords超流動 / 量子渦 / 量子乱流 / 量子流体 / トポロジー / マイクロ・ナノデバイス / 低温物性 / 量子渦・量子乱流
Outline of Final Research Achievements

The purpose of this research is elucidation of motion of quantum vortex which is one of the important factors in a critical behavior of quantum turbulence. We developed nanoelectromechanical systems (NEMS) and vortex generating devices, and performed preliminary experiments of vortex and turbulence generation in superfluid helium, as follows.
1.We fabricated nanoscale mechanical resonators of bridged wire(or beam), made of a carbon nanotube or photo-curing resin, as high sensitivity sensors for quantum vortices. 2.We fabricated orifice plate oscillators for generation of quantum vortex rings, and observed dissipation of oscillation due to vortex generation in superfluid helium.

Academic Significance and Societal Importance of the Research Achievements

超流動ヘリウム中の量子渦・量子乱流はシンプルな構造の超流動流の渦で構成されるため、その本質の理解は、古典流体やプラズマ中の渦・乱流現象や宇宙における位相欠陥など広範な分野の物理の理解に密接に関わる。量子乱流に関わる量子渦の微視的な運動状態の解明には、ナノサイズの微小なセンサーが必須であり、本研究によって量子渦のナノセンシング確立に進捗が得られたことは意義が大きい。また、渦の生成・制御が実現できる渦環生成装置の開発は、今後どのような渦がどのように振舞うかを直接観測できる実験系の実現に向けて大きく貢献したと言える。

Report

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

    (16 results)

All 2021 2020 2019 2018

All Journal Article (4 results) (of which Peer Reviewed: 4 results,  Open Access: 4 results) Presentation (12 results) (of which Int'l Joint Research: 4 results)

  • [Journal Article] Evidence for 4D XY Quantum Criticality in 4He Confined in Nanoporous Media at Finite Temperatures2021

    • Author(s)
      Tomoyuki Tani, Yusuke Nago, Satoshi Murakawa, and Keiya Shirahama
    • Journal Title

      Journal of the Physical Society of Japan

      Volume: 90 Issue: 3 Pages: 033601-033601

    • DOI

      10.7566/jpsj.90.033601

    • NAID

      210000158872

    • Related Report
      2020 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Multiple Diffusion-Freezing Mechanisms in Molecular-Hydrogen Films2019

    • Author(s)
      T. Makiuchi, K. Yamashita, M. Tagai, Y. Nago, and K. Shirahama
    • Journal Title

      Physical Review Letters

      Volume: 123 Issue: 24 Pages: 245301-245301

    • DOI

      10.1103/physrevlett.123.245301

    • Related Report
      2019 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] Elastic Anomaly of Thin Neon Film2019

    • Author(s)
      Makiuchi Takahiko、Yamashita Katsuyuki、Tagai Michihiro、Nago Yusuke、Shirahama Keiya
    • Journal Title

      Journal of the Physical Society of Japan

      Volume: 88 Issue: 3 Pages: 034601-034601

    • DOI

      10.7566/jpsj.88.034601

    • NAID

      210000135124

    • Related Report
      2018 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] Elastic anomaly of helium films at a quantum phase transition2018

    • Author(s)
      Makiuchi T.、Tagai M.、Nago Y.、Takahashi D.、Shirahama K.
    • Journal Title

      Physical Review B

      Volume: 98 Issue: 23 Pages: 235104-235104

    • DOI

      10.1103/physrevb.98.235104

    • Related Report
      2018 Research-status Report
    • Peer Reviewed / Open Access
  • [Presentation] ナノ多孔体Gelsil中ヘリウム4の流れ特性と超流動臨界指数2020

    • Author(s)
      谷智行,永合祐輔,村川智,白濱圭也
    • Organizer
      日本物理学会2020年秋季大会
    • Related Report
      2020 Annual Research Report
  • [Presentation] 弾性異常で見たグラファイト上 4He 薄膜の量子相転移2020

    • Author(s)
      鈴木貴博,巻内崇彦,永合祐輔,白濱圭也
    • Organizer
      日本物理学会第2020年秋季大会
    • Related Report
      2020 Annual Research Report
  • [Presentation] 六方晶窒化ホウ素表面上ヘリウム4薄膜の超流動と弾性2020

    • Author(s)
      桑原啓佑,鈴木貴博,永合祐輔,白濱圭也
    • Organizer
      日本物理学会第2020年秋季大会
    • Related Report
      2020 Annual Research Report
  • [Presentation] グラファイト上4He薄膜の弾性異常2020

    • Author(s)
      鈴木貴博 ,巻内崇彦,永合祐輔,白濱圭也
    • Organizer
      日本物理学会第75回年次大会
    • Related Report
      2019 Research-status Report
  • [Presentation] グラファイト上4He薄膜の弾性効果2019

    • Author(s)
      鈴木貴博 ,巻内崇彦,永合祐輔,白濱圭也
    • Organizer
      日本物理学会第2019年秋季大会
    • Related Report
      2019 Research-status Report
  • [Presentation] Fabrication of Phonon Generator Devices for Study of Quantum Phase Transition in Molecular Films2019

    • Author(s)
      Y. Nago, Y. Miyoshi, T. Makiuchi, R. Ishiguro, R. Toda, S. Murakawa, and K. Shirahama
    • Organizer
      The International Symposium on Quantum Fluids and Solids(QFS2019)
    • Related Report
      2019 Research-status Report
    • Int'l Joint Research
  • [Presentation] Elastic Anomaly of 4He Films Adsorbed on Graphite2019

    • Author(s)
      T. Suzuki, T. Makiuchi, Y. Nago, and K. Shirahama
    • Organizer
      The International Symposium on Quantum Fluids and Solids(QFS2019)
    • Related Report
      2019 Research-status Report
    • Int'l Joint Research
  • [Presentation] Elastic Anomaly as a Probe for Superfluidity of Helium and Hydrogen Films2019

    • Author(s)
      T. Makiuchi, T. Suzuki, K. Yamashita, Y. Nago, and K. Shirahama
    • Organizer
      The International Symposium on Quantum Fluids and Solids(QFS2019)
    • Related Report
      2019 Research-status Report
    • Int'l Joint Research
  • [Presentation] ヘリウム薄膜量子相転移の研究のためのフォノン生成器の作製2019

    • Author(s)
      永合祐輔, 三吉佑典, 石黒亮輔, 戸田亮, 村川智, 白濱圭也
    • Organizer
      日本物理学会第74回年次大会
    • Related Report
      2018 Research-status Report
  • [Presentation] 吸着薄膜における弾性異常2019

    • Author(s)
      巻内崇彦,山下勝之,互井通裕,永合祐輔,白濱圭也
    • Organizer
      日本物理学会第74回年次大会
    • Related Report
      2018 Research-status Report
  • [Presentation] Elastic Anomaly of Helium, Hydrogen and Neon Films on Disordered Substrate2019

    • Author(s)
      T. Makiuchi, K. Yamashita, M. Tagai, Y. Nago, and K. Shirahama
    • Organizer
      American Physical Society (APS) March Meeting
    • Related Report
      2018 Research-status Report
  • [Presentation] Nanomechanical Wire Resonator for Probing Quantum Vortex in Superfluid He2018

    • Author(s)
      Y. Nago, Y. Morikawa, Y. Tanaka, K. Kato, T. Takagi, H. Maki, S. Murakawa, K. Shirahama
    • Organizer
      The International Symposium on Quantum Fluids and Solids(QFS2018)
    • Related Report
      2018 Research-status Report
    • Int'l Joint Research

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

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