解説・出版物 Publications

報道・解説 Press/Commentary

1. プレスリリース（大阪公立大学，科学技術振興機構（JST））PDF
   日本語「―複雑な量子流動現象から生じた三日月スキルミオン― ケルビン・ヘルムホルツ不安定性の量子版を実験により観測 」 (2025年8月8日)
   English "Quantum ‘Starry Night’: physicists capture elusive instability and exotic vortices" (Aug 8, 2025)
   
   
   
   
   
2. プレスリリース（大阪公立大学，科学技術振興機構（JST））PDF
   日本語「超流動体はレイノルズの相似則に従うか？物理学の「常識」を覆す量子粘性を理論提言」 (2024年1月12日)
   English "Superfluids could share characteristic with common fluids" (Jan 30, 2024)
   マイナビニュースの記事
   日本経済新聞の記事
   EurekAlert!の記事
   AlphaGalileoの記事
   Asia Research Newsの記事
   
   
   
   
   
3. プレスリリース（大阪市立大学，大阪公立大学）
   日本語「新種のスキルミオンを発見」 (2022年2月9日)
   English “Eccentric fractional skyrmion discovered in numerical simulations of ultra-cold superfluids” (Feb 16, 2022)
   マイナビニュースの記事
   オプトロニクスオンラインの記事
   EurekAlert!の記事
   AlphaGalileoの記事
   Asia Research Newsの記事
   
   
   
   
   
4. プレスリリース（大阪市立大学と近畿大学の共同）
   「２種類の超流動体の界面模様の形成機構を解明　量子流体力学の発展につながる研究成果について」 (2021年8月19日)
   毎日新聞Webの記事
   SankeiBizの記事
   
   
   
   
   
5. プレスリリース（大阪市立大学）
   日本語「自発的対称性の破れによって生じた謎の物体を解明」 (2021年5月24日)
   English "Mystery object caused by spontaneous symmetry breaking revealed" (Jun 04, 2021)
   マイナビニュースの記事
   
   
   
   
   
6. トピックス（大阪公立大学　理学部サイト）
   「量子楕円渦の発見：自発的対称性の破れの新展開」 (2021年5月14日)
   
   
   
   
   
7. Hiromitsu Takeuchi
   Exotic Spontaneous Symmetry breaking in nematic-spin superfluids
   ANNUAL REPORT 2018-2019, NITEP, RESEARCH HIGHLIGHTS, p.9-10
   
   
   
   
   

論文 Papers

1. Mechanism for the anomalous minimization of superfluid critical velocity: Superfluid stability along a step potential
   Akihiro Kanjo, Hiromitsu Takeuchi
   arXiv:2601.04006, (2026) 1-9
   
   
2. Effect of Population Imbalance on Vortex Mass in Superfluid Fermi Gases
   Lucas Levrouw, Hiromitsu Takeuchi, Jacques Tempere
   arXiv:2512.22099, (2025) 1-19
   
   
3. Vortex Line Density in a Superfluid Turbulent Wake in the Zero Temperature Limit
   Hiromitsu Takeuchi
   ANNALEN DER PHYSIK (2025): e00270, 1-6
   Open Access
   
   
4. Vortex mass in superfluid Fermi gases along the BEC-BCS crossover
   Lucas Levrouw, Hiromitsu Takeuchi, Jacques Tempere
   Physical Review A 112, 043310 (2025) 1-12
   
   
5. Stable singular fractional skyrmion spin texture from the quantum Kelvin–Helmholtz instability
   SeungJung Huh, Wooyoung Yun, Gabin Yun, Samgyu Hwang, Kiryang Kwon, Junhyeok Hur, Seungho Lee, Hiromitsu Takeuchi, Se Kwon Kim, Jae-yoon Choi
   Nature Physics 21, 1398–1403 (2025)
   
   
6. Dynamic Scaling of Vorticity in Phase-separating Superfluid Mixtures
   Ryuta Ito, Hiromitsu Takeuchi
   Journal of the Physical Society of Japan 94, 073603 (2025) 1-5
   Open Select
   
   
7. Proper Orthogonal Decomposition of a Superfluid Turbulent Wake
   Sota Yoneda, Hiromitsu Takeuchi
   Journal of the Physical Society of Japan 94, 073601 (2025) 1-5
   Open Select
   
   
8. Critical velocity for wake vortex generation behind a plate in a superflow
   Haruya Kokubo, Hiromitsu Takeuchi, Kenichi Kasamatsu
   Physical Review A 111, 043314 (2025) 1-8
   
   
9. Universal description of massive point vortices and verification methods of vortex inertia in superfluids
   Akihiro Kanjo, Hiromitsu Takeuchi
   Physical Review A 110, 063311 (2024) 1-14
   
   
10. Splitting instability of a doubly quantized vortex in superfluid Fermi gases
    Wout Van Alphen, Hiromitsu Takeuchi, Jacques Tempere
    Physical Review A 109, 043317 (2024) 1-10
    
    
11. Critical Velocity for Quantized Vortex Formation in a Superfluid with a Plate-Shaped Obstacle
    Haruya Kokubo, Hiromitsu Takeuchi, Kenichi Kasamatsu
    Journal of Low Temperature Physics 215, 430-439 (2024)
    
    
12. Quantum viscosity and the Reynolds similitude of a pure superfluid
    Hiromitsu Takeuchi
    Physical Review B 109, L020502 (2024) 1-6
    
    
13. Kelvin wave in miscible two-component Bose-Einstein condensates
    Kenichi Kasamatsu, Maki Okada, Hiromitsu Takeuchi
    Physical Review A 107, 013309 (2023) 1-9
    
    
14. Spin-current instability at a magnetic domain wall in a ferromagnetic superfluid:
    A generation mechanism of eccentric fractional skyrmions
    Hiromitsu Takeuchi
    Physical Review A 105, 013328 (2022) 1-14
    
    
15. Vorticity Distribution in Quantum Kelvin–Helmholtz Instability of Binary Bose–Einstein Condensates
    Haruya Kokubo, Kenichi Kasamatsu, Hiromitsu Takeuchi
    Journal of Low Temperature Physics 208, 410–417 (2022)
    
    
16. Pattern formation of quantum Kelvin-Helmholtz instability in binary superfluids
    Haruya Kokubo, Kenichi Kasamatsu, Hiromitsu Takeuchi
    Physical Review A 104, 023312 (2021) 1-16
    VIDEO
    Superfluid Interface Mixes Classical and Quantum Behavior
    
    
17. Phase diagram of vortices in the polar phase of spin-1 Bose-Einstein condensates
    Hiromitsu Takeuchi
    Physical Review A 104, 013316 (2021) 1-15
    
    
18. Quantum Elliptic Vortex in a Nematic-Spin Bose-Einstein Condensate
    Hiromitsu Takeuchi
    Physical Review Letters 126, 195302 (2021) 1-7
    
    
19. Properties of a nematic spin vortex in an antiferromagnetic spin-1 Bose-Einstein condensate
    Andrew P. C. Underwood, D. Baillie, P. Blair Blakie, H. Takeuchi
    Physical Review A 102, 023326 (2020) 1-10
    
    
20. Phase Diagram of Solitons in the Polar Phase of a Spin-1 Bose-Einstein Condensate
    I-Kang Liu, Shih-Chuan Gou, Hiromitsu Takeuchi
    Physical Review Research 2, 033506 (2020) 1-8
    Open Access
    
    
21. Crossover between snake instability and Josephson instability of dark solitons in superfluid Fermi gases
    Wout Van Alphen, Hiromitsu Takeuchi, Jacques Tempere
    Physical Review A 100, 023628 (2019) 1-8
    
    
22. Observation of wall-vortex composite defects in a spinor Bose-Einstein condensate
    Seji Kang, Sang Won Seo, Hiromitsu Takeuchi, Yong-il Shin
    Physical Review Letters 122, 095301 (2019) 1-6
    
    
23. On the Internal Structure of Smaller Domains in Domain Coarsening Dynamics of Spontaneous Z2-Symmetry Breaking in Two Dimensions
    Hiromitsu Takeuchi
    Journal of Low Temperature Physics 196, 314-320 (2018)
    
    
24. Domain-area distribution anomaly in segregating multi-component superfluids
    Hiromitsu Takeuchi
    Physical Review A 97, 013617 (2018) 1-8
    Kaleidoscope
    
    
25. Is a Doubly Quantized Vortex Dynamically Unstable in Uniform Superfluids?
    Hiromitsu Takeuchi, Michikazu Kobayashi, Kenichi Kasamatsu
    Journal of the Physical Society of Japan 87, 023601 (2018) 1-5
    
    
26. Domain Size Distribution in Segregating Binary Superfluids
    Hiromitsu Takeuchi
    Journal of Low Temperature Physics 183, 169 (2016) 169-174
    
    
27. Projected Symmetry Breaking in Dipole-Locked 3He-B
    Hiromitsu Takeuchi, Shingo Kobayashi
    Journal of Low Temperature Physics 183, 78 (2016) 78-84
    
    
28. Phase ordering percolation and an infinite domain wall in segregating binary Bose-Einstein condensates
    Hiromitsu Takeuchi, Yumiko Mizuno, Kentaro Dehara
    Physical Review A 92, 043608 (2015) 1-7
    
    
29. Rabi-coupled Countersuperflow in Binary Bose-Einstein Condensates
    Ayaka Usui, Hiromitsu Takeuchi
    Physical Review A 91, 063635 (2015) 1-8
    
    
30. Counter-rotating vortices in miscible two-component Bose-Einstein condensates
    Shungo Ishino, Makoto Tsubota, Hiromitsu Takeuchi
    Physical Review A 88, 063617 (2013) 1-8
    
    
31. Nambu-Goldstone Modes in Segregated Bose-Einstein Condensates
    Hiromitsu Takeuchi, Kenichi Kasamatsu
    Physical Review A 88, 043612 (2013) 1-5
    
    
32. Instability Crossover of Helical Shear-flow in Segregated Bose-Einstein Condensates
    Shinsuke Hayashi, Makoto Tsubota, Hiromitsu Takeuchi
    Physical Review A 87, 063628 (2013) 1-9
    
    
33. D-brane solitons and boojums in field theory and Bose-Einstein condensates
    Kenichi Kasamatsu, Hiromitsu Takeuchi, Muneto Nitta
    Journal of Physics: Condensed Matter 25, 404213 (2013) 1-14
    
    
34. Wall-vortex composite solitons in two-component Bose-Einstein condensates
    Kenichi Kasamatsu, Hiromitsu Takeuchi, Makoto Tsubota, Muneto Nitta
    Physical Review A 88, 013620 (2013) 1-14
    
    
35. Magnetic Response of Odd-Frequency s-Wave Cooper Pairs in a Superfluid Proximity System
    S. Higashitani, H. Takeuchi, S. Matsuo, Y. Nagato, K. Nagai
    Physical Review Letters 110, 175301 (2013) 1-5
    
    
36. Tachyon Condensation and Brane Annihilation in Bose-Einstein Condensates: Spontaneous Symmetry Breaking in Restricted Lower-Dimensional Subspace
    Hiromitsu Takeuchi, Kenichi Kasamatsu, Makoto Tsubota, Muneto Nitta
    Journal of Low Temperature Physics 171, 443 (2013) 443-454
    
    
37. Instability of Overlapped Vortices Rotating in Opposite Directions in Binary Bose-Einstein Condensates
    S. Ishino, M. Tsubota, H. Takeuchi
    Journal of Low Temperature Physics 171, 429 (2013) 429-435
    
    
38. Helical Shear-Flow Instability in Phase-Separated Two-Component Bose-Einstein Condensates
    S. Hayashi, S. Ishino, M. Tsubota, H. Takeuchi
    Journal of Low Temperature Physics 171, 408 (2013) 408-414
    
    
39. Energy Spectrum of the Superfluid Velocity Made by Quantized Vortices in Two-Dimensional Quantum Turbulence
    T. Kusumura, H. Takeuchi, M. Tsubota
    Journal of Low Temperature Physics 171, 563 (2013) 563-570
    
    
40. Tachyon Condensation Due to Domain-Wall Annihilation in Bose-Einstein Condensates
    Hiromitsu Takeuchi, Kenichi Kasamatsu, Makoto Tsubota, Muneto Nitta
    Physical Review Letters 109, 245301 (2012) 1-5
    
    
41. Creating vortons and three-dimensional skyrmions from domain-wall annihilation with stretched vortices in Bose-Einstein condensates
    Muneto Nitta, Kenichi Kasamatsu, Makoto Tsubota, Hiromitsu Takeuchi
    Physical Review A 85, 053639 (2012) 1-11
    Kaleidoscope
    
    
42. Knudsen-to-Hydrodynamic Crossover in Liquid 3He in a High-Porosity Aerogel
    H. Takeuchi, S. Higashitani, K. Nagai, H. C. Choi, B. H. Moon, N. Masuhara, M. W. Meisel, Y. Lee, N. Mulders
    Physical Review Letters 108, 225307 (2012) 1-5
    
    
43. Drag Force on a High Porosity Aerogel in Liquid 3He
    Hiromitsu Takeuchi, Seiji Higashitani, Katsuhiko Nagai
    Journal of Physics: Conference Series 400, 012071 (2012) 1-4
    
    
44. Formation of Quantum Turbulence from Dark Solitons in Atomic Bose-Einstein Condensates
    Takuya Kusumura, Makoto Tsubota, Hiromitsu Takeuchi
    Journal of Physics: Conference Series 400, 012038 (2012) 1-4
    
    
45. Vortex Nucleation and Transition to Turbulence in two-component Bose-Einstein condensates
    Shungo Ishino, Makoto Tsubota, Hiromitsu Takeuchi
    Journal of Physics: Conference Series 400, 012022 (2012) 1-4
    
    
46. Countersuperflow instability in miscible two-component Bose-Einstein condensates
    Shungo Ishino, Makoto Tsubota, Hiromitsu Takeuchi
    Physical Review A 83, 063602 (2011) 1-8
    Kaleidoscope
    
    
47. Interaction of half-quantized vortices in two-component Bose-Einstein condensates
    Minoru Eto, Kenichi Kasamatsu, Muneto Nitta, Hiromitsu Takeuchi, Makoto Tsubota
    Physical Review A 83, 063603 (2011) 1-8
    
    
48. Counterflow Quantum Turbulence and the Instability in Two-component Bose-Einstein Condensates
    Shungo Ishino, Hiromitsu Takeuchi, Makoto Tsubota
    Journal of Low Temperature Physics 162, 361 (2011) 361-366
    
    
49. Vortex Formations from Domain Wall Annihilations in Two-component Bose-Einstein Condensates
    Hiromitsu Takeuchi, Kenichi Kasamatsu, Muneto Nitta, Makoto Tsubota
    Journal of Low Temperature Physics 162, 243 (2011) 243-249
    
    
50. Crossover between Kelvin-Helmholtz and counter-superflow instabilities in two-component Bose-Einstein condensates
    Naoya Suzuki, Hiromitsu Takeuchi, Kenichi Kasamatsu, Makoto Tsubota, Hiroki Saito
    Physical Review A 82, 063604 (2010) 1-9
    SYNOPSIS
    Wind blowing over an ultracold sea
    
    Kaleidoscope
    
    
51. Binary quantum turbulence arising from counter-superflow instability in two-component Bose-Einstein condensates
    Hiromitsu Takeuchi, Shungo Ishino, Makoto Tsubota
    Physical Review Letters 105, 205301 (2010) 1-4
    
    
52. Analogues of D-branes in Bose-Einstein condensates
    Kenichi Kasamatsu, Hiromitsu Takeuchi, Muneto Nitta, Makoto Tsubota
    Journal of High Energy Physics 11, 068 (2010) 1-11
    
    
53. Quantum Kelvin-Helmholtz Instability in phase-separated two-component Bose-Einstein condensates
    Hiromitsu Takeuchi, Naoya Suzuki, Kenichi Kasamatsu, Hiroki Saito, Makoto Tsubota
    Physical Review B 81, 094517 (2010) 1-5
    
    
54. Connection of Vortices Between Spatially Different Phases in Two-Component Bose-Einstein Condensates
    Kenichi Kasamatsu, Hiromitsu Takeuchi, Muneto Nitta, Makoto Tsubota
    Journal of Low Temperature Physics 158, 99 (2010) 99-104
    
    
55. Shear-flow Instability in Two-component Bose-Einstein Condensates
    Hiromitsu Takeuchi, Naoya Suzuki, Kenichi Kasamatsu, Hiroki Saito, Makoto Tsubota
    Journal of Low Temperature Physics 158, 384 (2010) 384-390
    
    
56. Donnelly-Glaberson instability exciting Kelvin waves in atomic Bose-Einstein condensates
    Hiromitsu Takeuchi, Makoto Tsubota
    Journal of Physics: Conference Series 150, 032105 (2009) 1-4
    
    
57. Spontaneous radiation and amplification of Kelvin waves on quantized vortices in Bose-Einstein condensates
    Hiromitsu Takeuchi, Kenichi Kasamatsu, Makoto Tsubota
    Physical Review A 79, 033619 (2009) 1-5
    
    
58. Zel'dovich-Starobinsky Effect in Atomic Bose-Einstein Condensates: Analogy to Kerr Black Hole
    Hiromitsu Takeuchi, Makoto Tsubota, Grigory E. Volovik
    Journal of Low Temperature Physics 150, 624 (2008) 624-629
    
    
59. Boojums Connecting Singular and Continuous Vortices in Two-Component Bose-Einstein Condensates.
    Hiromitsu Takeuchi, Makoto Tsubota
    Journal of Low Temperature Physics 148, 375 (2007) 1-5
    
    
60. Vortex Structures in Rotating Two-Component Bose-Einstein Condensates in an Anharmonic Trapping Potential
    Hiromitsu Takeuchi, Kenichi Kasamatsu, Makoto Tsubota
    AIP Conference Proceedings 850, 57 (2006) 1-2
    
    
61. Boojums in Rotating Two-Component Bose-Einstein Condensates
    Hiromitsu Takeuchi, Makoto Tsubota
    Journal of the Physical Society of Japan 75, 063601 (2006) 1-4
    
    

査読なし Without Peer Review

1. Ayaka Usui, Hiromitsu Takeuchi
   Stability of a Soliton in Counter-propagating Two-component Bose-Einstein Condensates with Rabi Coupling
   Conference Paper, Frontiers in Optics 2014, Tucson, Arizona United States ISBN: 1-55752-286-3 (http://dx.doi.org/10.1364/FIO.2014.JTu3A.18)
   
   
2. Yumiko Mizuno, Kentaro Dehara, Hiromitsu Takeuchi
   Percolation in Segregated Binary Bose-Einstein Condensates
   Conference Paper, Frontiers in Optics 2014, Tucson, Arizona United States ISBN: 1-55752-286-3 (http://dx.doi.org/10.1364/FIO.2014.JTu3A.16)
   
   

総説 Review Papers

1. Quantum hydrodynamics
   Makoto Tsubota, Michikazu Kobayashi, Hiromitsu Takeuchi
   Physics Reports 522, 191 (2013) 191-238

著書 Books

1. 坪田 誠，笠松 健一，小林 未知数，竹内 宏光
   
   「量子流体力学：Quantum Hydrodynamics」
   判型：A5（ソフトカバー）338ページ
   出版社名：丸善出版 (2018/1/27)
   ISBN-10: 4621302477
   ISBN-13: 978-4621302477