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Topological Excitations in Quantum Condensates with Complex Order Parameters

Research Project

Project/Area Number 17K05554
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeMulti-year Fund
Section一般
Research Field Condensed matter physics II
Research InstitutionKindai University

Principal Investigator

Nakahara Mikio  近畿大学, 理工学総合研究所, 研究員 (90189019)

Co-Investigator(Kenkyū-buntansha) 高木 丈夫  福井大学, 学術研究院工学系部門, 教授 (00206723)
笠松 健一  近畿大学, 理工学部, 准教授 (70413763)
Project Period (FY) 2017-04-01 – 2020-03-31
Project Status Completed (Fiscal Year 2019)
Budget Amount *help
¥4,290,000 (Direct Cost: ¥3,300,000、Indirect Cost: ¥990,000)
Fiscal Year 2019: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000)
Fiscal Year 2018: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000)
Fiscal Year 2017: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000)
Keywordsボース凝縮 / 超流動ヘリウム3 / 量子渦 / スキルミオン / ホップ写像 / ユニタリーt-デザイン / アナログ重力 / 光格子 / BEC / 超流動3He / アナログ重力理論 / 人工ブラックホール / カイラルドメインウォール / 渦糸 / ドメイン / スピン自由度 / 超流動ヘリウム / 物性理論 / 超流動 / 冷却原子 / トポロジカル励起 / トポロジー
Outline of Final Research Achievements

Vortices in superfluid 3He-B under magnetic field were analyzed and phase diagram of various vortices were obtained as a function of pressure and magnetic field for example. Half-quantum vortices in 3He-A was analyze in the slab geometry. Link structure with arbitrary Hopf charge was obtained in the polar phase of F=1 BEC in a 3-d trap by manipulating the quadrupole field and uniform axial magnetic field as functions of time. The 3-d skyrmions in the cyclic and the biaxial nematic phases of F=2 BEC were analyzed. Analogue gravity associated with superfluid and Yang-Mills field was analyzed in a curved spacetime. It was shown that an average over unitary group manifold can be replaced by an average of a finite set of points in the unitary group (unitary t-design).

Academic Significance and Societal Importance of the Research Achievements

本研究では,超流動3Heやスピン自由度を持つボース凝縮体など,複雑な秩序変数を持つ凝縮体におけるトポロジカル励起の研究や,組み合わせ論と量子情報の共通領域であるユニタリーt-デザインの研究など,物理学と数学の諸分野にまたがる研究を行った.ワークショップ等を通して,これらの分野の研究者の交流を深めた.また,多くの国際共同研究の成果を,インパクトファクターの高い雑誌に多数出版することにより,我が国および世界の学術的レベルの向上に寄与した.

Report

(4 results)
  • 2019 Annual Research Report   Final Research Report ( PDF )
  • 2018 Research-status Report
  • 2017 Research-status Report
  • Research Products

    (47 results)

All 2020 2019 2018 2017 Other

All Int'l Joint Research (8 results) Journal Article (13 results) (of which Int'l Joint Research: 8 results,  Peer Reviewed: 13 results,  Open Access: 3 results,  Acknowledgement Compliant: 1 results) Presentation (26 results) (of which Int'l Joint Research: 12 results,  Invited: 10 results)

  • [Int'l Joint Research] Shanghai University/Shanghai Jiao Tong University/Chinese Academy of Sciences(中国)

    • Related Report
      2019 Annual Research Report
  • [Int'l Joint Research] Hanyang University/Institute for Basic Science(韓国)

    • Related Report
      2019 Annual Research Report
  • [Int'l Joint Research] Leibniz University Hannover(ドイツ)

    • Related Report
      2019 Annual Research Report
  • [Int'l Joint Research] Institute for Basic Science(韓国)

    • Related Report
      2018 Research-status Report
  • [Int'l Joint Research] Aalto University/University of Jyvaskyla/University of Helsinki(フィンランド)

    • Related Report
      2017 Research-status Report
  • [Int'l Joint Research] National University of Uzbekistan(ウズベキスタン)

    • Related Report
      2017 Research-status Report
  • [Int'l Joint Research] Monash University(オーストラリア)

    • Related Report
      2017 Research-status Report
  • [Int'l Joint Research] Amherst College(米国)

    • Related Report
      2017 Research-status Report
  • [Journal Article] Disorderless Quasi-localization of Polar Gases in One-Dimensional Lattices2020

    • Author(s)
      W. Li, A. Dhar, X. Deng, K. Kasamatsu, L. Barbiero, and L. Santos
    • Journal Title

      Physical Review Letter

      Volume: 124 Issue: 1 Pages: 010404-010404

    • DOI

      10.1103/physrevlett.124.010404

    • Related Report
      2019 Annual Research Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Modulational instability, inter-component asymmetry and formation of quantum droplets in one-dimensional binary Bose gases2020

    • Author(s)
      Thudiyangal Mithun, Aleksandra Maluckov, Kenichi Kasamatsu, Boris A. Malomed, Avinash Khare
    • Journal Title

      Symmetry

      Volume: 12 Issue: 1 Pages: 174-174

    • DOI

      10.3390/sym12010174

    • Related Report
      2019 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Acoustic black holes in curved spacetime and the emergence of analogue Minkowski spacetime2019

    • Author(s)
      Ge Xian-Hui、Nakahara Mikio、Sin Sang-Jin、Tian Yu、Wu Shao-Feng
    • Journal Title

      Physical Review D

      Volume: 99 Issue: 10 Pages: 104047-104047

    • DOI

      10.1103/physrevd.99.104047

    • Related Report
      2019 Annual Research Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] On the explicit constructions of certain unitary t-designs2019

    • Author(s)
      Bannai Eiichi、Nakahara Mikio、Zhao Da、Zhu Yan
    • Journal Title

      Journal of Physics A: Mathematical and Theoretical

      Volume: 52 Issue: 49 Pages: 495301-495301

    • DOI

      10.1088/1751-8121/ab5009

    • Related Report
      2019 Annual Research Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Transverse instability and disintegration of a domain wall of a relative phase in coherently coupled two-component Bose-Einstein condensates2019

    • Author(s)
      Kousuke Ihara and Kenichi Kasamatsu
    • Journal Title

      Physical Review A

      Volume: 100 Issue: 1 Pages: 013630-013630

    • DOI

      10.1103/physreva.100.013630

    • Related Report
      2019 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Effects of a magnetic field on vortex states in superfluid He3?B2019

    • Author(s)
      Kasamatsu Kenichi、Mizuno Ryota、Ohmi Tetsuo、Nakahara Mikio
    • Journal Title

      Physical Review B

      Volume: 99 Issue: 10 Pages: 1-11

    • DOI

      10.1103/physrevb.99.104513

    • Related Report
      2018 Research-status Report
    • Peer Reviewed
  • [Journal Article] Modulation instability associated nonlinear dynamics of spin?orbit coupled Bose?Einstein condensates2019

    • Author(s)
      Mithun Thudiyangal、Kasamatsu Kenichi
    • Journal Title

      Journal of Physics B: Atomic, Molecular and Optical Physics

      Volume: 52 Issue: 4 Pages: 1-9

    • DOI

      10.1088/1361-6455/aafbdd

    • Related Report
      2018 Research-status Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Stripes and honeycomb lattice of quantized vortices in rotating two-component Bose-Einstein condensates2018

    • Author(s)
      Kasamatsu Kenichi、Sakashita Kouhei
    • Journal Title

      Physical Review A

      Volume: 97 Issue: 5 Pages: 1-6

    • DOI

      10.1103/physreva.97.053622

    • Related Report
      2018 Research-status Report
    • Peer Reviewed
  • [Journal Article] Fast-forward scaling theory for phase imprinting on a BEC: creation of a wave packet with uniform momentum density and loading to Bloch states without disturbance2018

    • Author(s)
      Masuda Shumpei、Nakamura Katsuhiro、Nakahara Mikio
    • Journal Title

      New Journal of Physics

      Volume: 20 Issue: 2 Pages: 025008-025008

    • DOI

      10.1088/1367-2630/aaacea

    • Related Report
      2017 Research-status Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Three-dimensional skyrmions in spin-2 Bose Einstein condensates2018

    • Author(s)
      K. Tiurev, T. Ollikainen, P. Kuopanportti, M. Nakahara, D. S. Hall, M. Mottonen
    • Journal Title

      New Journal of Physics

      Volume: -

    • Related Report
      2017 Research-status Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Quantum knots in Bose-Einstein condensates created by counterdiabatic control2017

    • Author(s)
      T. Ollikainen, S. Masuda, M. Mottonen, M. Nakahara
    • Journal Title

      Physical Review A

      Volume: 96 Issue: 6 Pages: 063609-063609

    • DOI

      10.1103/physreva.96.063609

    • Related Report
      2017 Research-status Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Quantum simulation of (1+1)-dimensional U(1) gauge-Higgs model on a lattice by cold Bose gases2017

    • Author(s)
      Yoshihito Kuno, Shinya Sakane, Kenichi Kasamatsu, Ikuo Ichinose, Tetsuo Matsui
    • Journal Title

      Physical Review

      Volume: D95 Issue: 9 Pages: 094507-094507

    • DOI

      10.1103/physrevd.95.094507

    • Related Report
      2017 Research-status Report
    • Peer Reviewed / Acknowledgement Compliant
  • [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

    • Related Report
      2017 Research-status Report
    • Peer Reviewed
  • [Presentation] F=2 BECにおける3次元skyrmion2020

    • Author(s)
      中原幹夫
    • Organizer
      Bose-Einstein凝縮体における数学的側面
    • Related Report
      2019 Annual Research Report
    • Invited
  • [Presentation] 対向流をもつ相分離した2成分ボース凝縮体における界面の非線形ダイナミクス2020

    • Author(s)
      小久保治哉, 笠松健一, 竹内宏光
    • Organizer
      日本物理学会 第75回年次大会
    • Related Report
      2019 Annual Research Report
  • [Presentation] Majorana Representation of Complex Vectors and Some of Applications2019

    • Author(s)
      Mikio Nakahara
    • Organizer
      Shanghai Jiao Tong University Combinatorics Seminar
    • Related Report
      2019 Annual Research Report
    • Invited
  • [Presentation] Quench Dynamics From Mott Insulator to Superfluid in the Bose-Hubbard Model: Application of the Inhomogeneous Kibble-Zurek Mechanism2019

    • Author(s)
      Y. Machida, K. Kasamatsu
    • Organizer
      28th Annual International Laser Physics Workshop
    • Related Report
      2019 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Semi-Classical Dynamics of a Dark Soliton in a One-Dimensional Lattice Bose Gas2019

    • Author(s)
      Y Ozaki, K Nagao, I Danshita, K Kasamatsu
    • Organizer
      28th Annual International Laser Physics Workshop
    • Related Report
      2019 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Transverse Instability and Disintegration of Domain Wall of Relative Phase in Coherently Coupled Two-Component Bose-Einstein Condensates2019

    • Author(s)
      K. Ihara, K. Kasamatsu
    • Organizer
      28th Annual International Laser Physics Workshop
    • Related Report
      2019 Annual Research Report
    • Int'l Joint Research
  • [Presentation] 超流動-Mott絶縁体転移における非一様Kibble-Zurek理論の適応2019

    • Author(s)
      町田佳央, 笠松健一
    • Organizer
      日本物理学会 2019年秋季大会
    • Related Report
      2019 Annual Research Report
  • [Presentation] Majorana Representation of Complex Vectors and Some of Applications2019

    • Author(s)
      Mikio Nakahara
    • Organizer
      Taipei International Workshop on Combinatorics and Graph Theory
    • Related Report
      2018 Research-status Report
    • Int'l Joint Research / Invited
  • [Presentation] VORTICES IN SUPERFLUID 3HE-B UNDER MAGNETIC FIELD2019

    • Author(s)
      Mikio Nakahara, Kenichi Kasamatsu, Ryota Mizuno and Tetsuo Ohmi
    • Organizer
      Finnish Physical Society Meeting (Physics Days 2019)
    • Related Report
      2018 Research-status Report
    • Int'l Joint Research
  • [Presentation] 有限磁場下における超流動3He-B相の渦芯構造と相図II-横磁場の場合-2019

    • Author(s)
      笠松健一、大見哲巨、中原幹夫
    • Organizer
      日本物理学会 第74回年次大会
    • Related Report
      2018 Research-status Report
  • [Presentation] ラビ結合した2成分ボース凝縮体のドメインウォールの不安定化2019

    • Author(s)
      井原康輔、笠松健一
    • Organizer
      日本物理学会 第74回年次大会
    • Related Report
      2018 Research-status Report
  • [Presentation] 光格子中の一次元Bose気体におけるダークソリトンの準古典ダイナミクス2019

    • Author(s)
      尾崎裕介、長尾一馬、段下一平、笠松健一
    • Organizer
      日本物理学会 第74回年次大会
    • Related Report
      2018 Research-status Report
  • [Presentation] Creation of knots in Bose-Einstein condensates by counterdiabatic quantum control2018

    • Author(s)
      Mikio Nakahara
    • Organizer
      C3QS: Coherent Control of Complex Quantum Systems
    • Related Report
      2018 Research-status Report
    • Int'l Joint Research
  • [Presentation] Quantum Information, Quantum Computing and Combinatorics2018

    • Author(s)
      Mikio Nakahara
    • Organizer
      Design Theory from the Viewpoint of Algebraic Combinatorics
    • Related Report
      2018 Research-status Report
    • Int'l Joint Research / Invited
  • [Presentation] Counter-Diabatic DrivingによるSpinor BECのトポロジカル励起生成2018

    • Author(s)
      中原幹夫
    • Organizer
      第26回渦糸物理国内会議
    • Related Report
      2018 Research-status Report
  • [Presentation] Counter-Diabatic DrivingによるSpinor BECのトポロジカル励起生成2018

    • Author(s)
      中原幹夫
    • Organizer
      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
    • Related Report
      2018 Research-status Report
    • Invited
  • [Presentation] 非軸対称な芯をもつ量子渦~Rabi結合した2成分BECおよび超流動3He-B~2018

    • Author(s)
      笠松健一
    • Organizer
      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
    • Related Report
      2018 Research-status Report
    • Invited
  • [Presentation] 超流動3He-A 相でのカイラルドメインとスピン流2018

    • Author(s)
      高木 丈夫
    • Organizer
      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
    • Related Report
      2018 Research-status Report
    • Invited
  • [Presentation] 平行平板中超流動ヘリウム3ーA相での半整数量子渦の観測2018

    • Author(s)
      木村豊,小原顕,矢野英雄,高木丈夫,山下譲,石川修六
    • Organizer
      日本物理学会第73回年次大会
    • Related Report
      2017 Research-status Report
  • [Presentation] Splitting instability of a doubly quantized vortex in homogeneous superfluids2018

    • Author(s)
      Hiromitsu Takeuchi, Michikazu Kobayashi, Kenichi Kasamatsu
    • Organizer
      APS March Meeting 2018
    • Related Report
      2017 Research-status Report
    • Int'l Joint Research
  • [Presentation] 有限磁場下における超流動3He-B相の渦芯構造と相図2018

    • Author(s)
      笠松健一, 大見哲巨, 中原幹夫
    • Organizer
      日本物理学会 第73回年次大会
    • Related Report
      2017 Research-status Report
  • [Presentation] Topological vortex creation in BEC2017

    • Author(s)
      Mikio Nakahara
    • Organizer
      International Workshop on Topological Structures in Quantum Matter
    • Related Report
      2017 Research-status Report
    • Int'l Joint Research / Invited
  • [Presentation] Quantum knots in F = 1 BEC created by counterdiabatic control2017

    • Author(s)
      Mikio Nakahara
    • Organizer
      Ultracold Atomic Gases and Quantum Control
    • Related Report
      2017 Research-status Report
    • Int'l Joint Research / Invited
  • [Presentation] 平行平板中超流動ヘリウム3ーA相での半整数量子渦2017

    • Author(s)
      木村豊,小原顕,矢野英雄,高木丈夫,山下譲,石川修六
    • Organizer
      日本物理学会2017年秋季大会
    • Related Report
      2017 Research-status Report
  • [Presentation] Vortex dynamics in multicomponent Bose-Einstein condensates2017

    • Author(s)
      Kenichi Kasamatsu
    • Organizer
      International Workshop on Topological Structures in Quantum Matter
    • Related Report
      2017 Research-status Report
    • Int'l Joint Research / Invited
  • [Presentation] Dynamics of half-quantized vortices in two-component Bose-Einstein condensates2017

    • Author(s)
      Kenichi Kasamatsu
    • Organizer
      28th International Conference on Low Temperature Physics
    • Related Report
      2017 Research-status Report
    • Int'l Joint Research

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Published: 2017-04-28   Modified: 2022-02-21  

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