Phase ordering percolation and dynamic statistical law in multi-component superfluids

• Project/Area Number: 17K05549
• Research Category: Grant-in-Aid for Scientific Research (C)
• Allocation Type: Multi-year Fund
• Section: 一般
• Research Field: Condensed matter physics II
• Research Institution: Osaka City University
• Principal Investigator: Takeuchi Hiromitsu 大阪市立大学, 大学院理学研究科, 講師 (10587760)
• Project Period (FY): 2017-04-01 – 2020-03-31
• Project Status: Completed (Fiscal Year 2019)
• Budget Amount: ¥4,420,000 (Direct Cost: ¥3,400,000、Indirect Cost: ¥1,020,000); Fiscal Year 2019: ¥780,000 (Direct Cost: ¥600,000、Indirect Cost: ¥180,000); Fiscal Year 2018: ¥2,340,000 (Direct Cost: ¥1,800,000、Indirect Cost: ¥540,000); Fiscal Year 2017: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000)
• Keywords: 物理学 / 物性物理学 / 低温物理学 / 超流動 / 自発的対称性の破れ / パーコレーション / 超低温・量子凝縮系 / 位相欠陥 / ボース・アインシュタイン凝縮 / 秩序化動力学 / フェルミオン超流体 / ジョセフソン不安定性 / 浸透理論 / 量子渦 / 動的安定性 / ドメイン形成 / 物性理論 / 量子流体 / 秩序化過程

Outline of Final Research Achievements

It is expected that non-equilibrium dynamics due to spontaneous symmetry breaking (SSB) induced by rapid quench can be understood as a universal physical phenomena independent on length scales. This research field has long history longer than 40 years but the details has not been revealed except for simple cases. This research project is based on theoretical consideration and numerical computation and has contributed to new understanding on non-equilibrium dynamics on SSB in superfluid systems, which is said to be the matter that realize the most complicated SSB. The project progress toward a higher plane than the original plan with the aid of international collaborations.

Academic Significance and Societal Importance of the Research Achievements

自発的対称性の破れ（SSB）は，リニアモーターカーなどの最先端技術に応用されている超伝導体や，宇宙初期に起こったとされる相転移の理解に至るまで，物理学の各分野で議論される長さスケールの全く異なる物理現象を結びつける普遍的な物理概念である．そのため，SSBに関する物理現象を新たに解明することは，科学技術の基礎をなす物理学分野全体の発展に結びつく．本研究ではSSBの時間発展について新たな事実を科学的に示すことで，このような発展に貢献している．

Research Products

• [Int'l Joint Research] Otago University(ニュージーランド)
• [Int'l Joint Research] Sorbonne University(フランス)
• [Int'l Joint Research] University of Antwerp(ベルギー)
• [Int'l Joint Research] Seoul National University(韓国)
• [Int'l Joint Research] 国立彰化師範大学(台湾)
• [Int'l Joint Research]
• [Int'l Joint Research] ソウル国立大学(韓国)
• [Int'l Joint Research] アントワープ大学(ベルギー)
• [Int'l Joint Research] ソルボンヌ大学(フランス)
• [Journal Article] Crossover between snake instability and Josephson instability of dark solitons in superfluid Fermi gases (2019)
  • Author(s): Van Alphen W.、Takeuchi H.、Tempere J.
  • Journal Title: Physical Review A Volume: 100 Issue: 2 Pages: 023628-023628
  • DOI: 10.1103/physreva.100.023628
  • Peer Reviewed / Int'l Joint Research
• [Journal Article] Observation of Wall-Vortex Composite Defects in a Spinor Bose-Einstein Condensate (2019)
  • Author(s): Kang Seji、Seo Sang Won、Takeuchi Hiromitsu、Shin Y.
  • Journal Title: Physical Review Letters Volume: 122 Issue: 9
  • DOI: 10.1103/physrevlett.122.095301
  • Peer Reviewed / Int'l Joint Research
• [Journal Article] On the Internal Structure of Smaller Domains in Domain Coarsening Dynamics of Spontaneous Z2-Symmetry Breaking in Two Dimensions (2018)
  • Author(s): Takeuchi Hiromitsu
  • Journal Title: Journal of Low Temperature Physics Volume: - Issue: 1-2 Pages: 314-320
  • DOI: 10.1007/s10909-018-02129-8
  • Peer Reviewed
• [Journal Article] Domain-area distribution anomaly in segregating multicomponent superfluids (2018)
  • Author(s): Hiromitsu Takeuchi
  • Journal Title: Physical Review A Volume: 97 Issue: 1 Pages: 013617
  • DOI: 10.1103/physreva.97.013617
  • NAID: 120006392620
  • URL: https://ocu-omu.repo.nii.ac.jp/records/2020392
  • Peer Reviewed
• [Journal Article] Is a Doubly Quantized Vortex Dynamically Unstable in Uniform Superfluids? (2017)
  • Author(s): Hiromitsu Takeuchi, Michikazu Kobayashi and Kenichi Kasamatsu
  • Journal Title: Journal of Physical Society of Japan Volume: 87 Issue: 2 Pages: 023601
  • DOI: 10.7566/jpsj.87.023601
  • NAID: 130007646688
  • URL: https://ocu-omu.repo.nii.ac.jp/records/2020040
  • Peer Reviewed
• [Presentation] Instability of a Doubly Quantized Vortex in Uniform Super- fluids at Zero Temperature (2020)
  • Author(s): Hiromitsu Takeuchi, Michikazu Kobayashi, and Kenichi Kasamatsu
  • Organizer: Turbulence of all kinds
  • Int'l Joint Research
• [Presentation] Critical percolation in early-stage quench dynamics with spontaneous discrete symmetry breaking in a two-dimensional Continuum (2019)
  • Author(s): H. Takeuchi, L. F. Cugliandolo, and M. Picco
  • Organizer: StatPhys27: Internatinal Conference Statistical Physics
  • Int'l Joint Research
• [Presentation] Domain-area distribution in phase-separating two-component Bose-Einstein condensates (2019)
  • Author(s): H. Takeuchi
  • Organizer: StatPhys27: Internatinal Conference Statistical Physics
  • Int'l Joint Research
• [Presentation] Phase Diagram of Solitons in a Spin-1 Polar Bose-Einstein Condensate (2019)
  • Author(s): I.-K. Liu, S.-G. Gou, and H. Takeuchi
  • Organizer: 28th International Laser Physics Workshop
  • Int'l Joint Research
• [Presentation] Decay of Giant Vortices and Solitons in a Superfluid Fermi Gas (2019)
  • Author(s): W. Van Alphen, H. Takeuchi, S. N. Klimin, and J. Tempere
  • Organizer: 28th International Laser Physics Workshop
  • Int'l Joint Research
• [Presentation] Length scale hierarchy in phase transition dynamics of spontaneous symmetry breaking in multi-component Bose-Einstein condensates (2019)
  • Author(s): Hiromitsu Takeuchi
  • Organizer: VORTEX DYNAMICS, TURBULENCE AND RELATED PHENOMENA IN QUANTUM FLUIDS
  • Int'l Joint Research / Invited
• [Presentation] Is a doubly quantized vortex unstable in uniform Bose-Einstein condensates at zero temperature? (2018)
  • Author(s): Hiromitsu Takeuchi, Michikazu Kobayashi, Kenichi Kasamatsu
  • Organizer: Quantum Science Symposium Europe-2018 Meeting, Peterhouse, University of Cambridge, UK
  • Int'l Joint Research / Invited
• [Presentation] 相分離する2成分超流体の秩序化過程 (2018)
  • Author(s): 竹内宏光
  • Organizer: 研究会「超流動3HeおよびスピノールBECにおけるトポロジカル相・励起」，近畿大学，東大阪キャンパス
  • Invited
• [Presentation] Instability of a Doubly Quantized Vortex in Uniform Superfluids at Zero Temperature (2018)
  • Author(s): H. Takeuchi, M. Kobayashi, and K. Kasamatsu
  • Organizer: QFS2018: Internatinal Conference on Quantum Fluids and Solids,Tokyo
  • Int'l Joint Research
• [Presentation] Anomalous hierarchy in domain coarsening dynamics of two-component Bose-Einstein condensates (2018)
  • Author(s): H. Takeuchi
  • Organizer: QFS2018: Internatinal Conference on Quantum Fluids and Solids
  • Int'l Joint Research
• [Presentation] Splitting instability of a doubly quantized vortex in homogeneous superfluids (2018)
  • Author(s): Hiromitsu Takeuchi, Michikazu Kobayashi, Kenichi Kasamatsu
  • Organizer: APS March Meeting
  • Int'l Joint Research
• [Presentation] Application of percolation theory to coarsening dynamics of domains in segregating binary superfluids (2018)
  • Author(s): Hiromitsu Takeuchi
  • Organizer: FINESS2018-Finite Temperature Non-equilibrium Superfluid Systems
  • Int'l Joint Research
• [Presentation] 巻き数２の量子渦は動的に安定か？ (2018)
  • Author(s): 竹内宏光，小林未知数，笠松健一
  • Organizer: 日本物理学会，年次大会
• [Presentation] Splitting instability of a doubly quantized vortex in uniform Bose-Einstein condensates at zero temperature (2018)
  • Author(s): H. Takeuchi, M. Kobayashi, and K. Kasamatsu
  • Organizer: FINESS2018-Finite Temperature Non-equilibrium Superfluid Systems
  • Int'l Joint Research
• [Presentation] Domain-area distribution anomaly in segregating multi-component superfluids (2017)
  • Author(s): H. Takeuchi
  • Organizer: ULT2017: Frontiers of Low Temperature Physics
  • Int'l Joint Research
• [Presentation] Splitting instability of a doubly quantized vortex in homogeneous superfluids (2017)
  • Author(s): H. Takeuchi, M. Kobayashi, and K. Kasamatsu
  • Organizer: ULT2017: Frontiers of Low Temperature Physics
  • Int'l Joint Research
• [Presentation] Dynamic scaling law and phase ordering percolation in multicomponent superfluids (2017)
  • Author(s): H. Takeuchi
  • Organizer: LT28: 28th International Conference on Low Temperature Physics
  • Int'l Joint Research
• [Book] 量子流体力学 (2018)
  • Author(s): 坪田 誠、笠松 健一、小林 未知数、竹内 宏光
  • Total Pages: 338
  • Publisher: 丸善
  • ISBN: 4621302477
• [Remarks] Hiromitsu Takeuchi 竹内 宏光
  • URL: http://hiromitsu-takeuchi.appspot.com
• [Remarks] 研究者詳細 竹内 宏光
  • URL: https://research-soran17.osaka-cu.ac.jp/html/100000504_ja.html
• [Remarks] Hiromitsu Takeuchi 竹内 宏光（１）
  • URL: http://hiromitsu-takeuchi.appspot.com
• [Remarks] 研究者詳細 - 竹内 宏光（２）
  • URL: https://research-soran17.osaka-cu.ac.jp/html/100000504_ja.html
• [Remarks] 研究者詳細 - 竹内 宏光
  • URL: https://research-soran17.osaka-cu.ac.jp/html/100000504_ja.html