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小泉 裕康

Koizumi, Hiroyasu

計算科学研究センター , 准教授
Center for Computational Sciences , Associate Professor

超伝導電流は電子ペアの流れではない～標準理論に根本的な変更を迫る新理論の提案～

2021-09-21

小泉 裕康
ファインマンも解けなかった問題を解明 ～ファラデーの電磁誘導の法則とローレンレツ力はなぜ同じ起電力を与えるのか～

2017-11-21

小泉 裕康
高温超伝導現象を説明する新しい理論を提案－BCS理論を超える標準理論となるか

2015-09-29

小泉 裕康
オープンアクセス版の論文は「つくばリポジトリ」で読むことができます。
  1. 1. Toward the Detection of Spin-Vortex-Induced Loop Currents in a Single Bilayer Bi2Sr2CaCu2O8+deltaThin Film and Their Possible Use as Qubits: Model Calculations for Three Nano-island Architecture KOIZUMI, Hiroyasu; 田谷隼人; 高津悠斗
      Journal of Superconductivity and Novel Magnetism 28: 132 (2025)
  2. 2. Constrained Hamiltonian dynamics for electrons in magnetic field and additional forces besides the Lorentz force acting on electrons Koizumi, Hiroyasu
      JOURNAL OF PHYSICS A-MATHEMATICAL AND THEORETICAL 57: (2024)
  3. 3. Reversible superconducting-normal phase transition in a magnetic field: The energy-momentum balance including the velocity field of the Berry connection from many-body wave functions Koizumi, Hiroyasu
      PHYSICA SCRIPTA 99: 015952 (2024) Semantic Scholar
  4. 4. Neglected U(1) phase in the Schrodinger representation of quantum mechanics and particle number conserving formalisms for superconductivity Koizumi, Hiroyasu
      JOURNAL OF PHYSICS A-MATHEMATICAL AND THEORETICAL 56: (2023) Semantic Scholar
  5. 5. Supercurrent and electromotive force generations by the Berry connection from many-body wave functions Koizumi, Hiroyasu
      JOURNAL OF PHYSICS A-MATHEMATICAL AND THEORETICAL 56: 185301 (2023) Semantic Scholar
  6. 6. Schrodinger representation of quantum mechanics, Berry connection, and superconductivity Koizumi, Hiroyasu
      PHYSICS LETTERS A 450: 128367 (2022) Semantic Scholar
  7. 7. Spin-vortex-induced Loop Current Qubits: Gate Control and Readout Using External Current Feeding Koizumi, Hiroyasu; Ishikawa, Alto
      Journal of Superconductivity and Novel Magnetism 35: 1337 (2022) Semantic Scholar
  8. 8. Study of Cuprate Superconductivity Using the Particle Number Conserving Bogoliubov-de Gennes Equations: ARPES and STS Images From Surface Plus Bulk Layers Model Koizumi, Hiroyasu; Morio, Naoki; Ishikawa, Alto; Kondo, Takumi
      JOURNAL OF SUPERCONDUCTIVITY AND NOVEL MAGNETISM 35: 2357 (2022) Semantic Scholar
  9. 9. Berry Connection from Many-Body Wave Functions and Superconductivity: Calculations by the Particle Number Conserving Bogoliubov-De Gennes Equations Koizumi, Hiroyasu; Ishikawa, Alto
      JOURNAL OF SUPERCONDUCTIVITY AND NOVEL MAGNETISM 34: 2795 (2021) Semantic Scholar
  10. 10. Superconductivity by Berry Connection from Many-body Wave Functions: Revisit to Andreev-Saint-James Reflection and Josephson Effect Koizumi, Hiroyasu
      JOURNAL OF SUPERCONDUCTIVITY AND NOVEL MAGNETISM 34: 2017 (2021) Semantic Scholar
  11. 11. London Moment, London's Superpotential, Nambu-Goldstone Mode, and Berry Connection from Many-Body Wave Functions Koizumi, Hiroyasu
      JOURNAL OF SUPERCONDUCTIVITY AND NOVEL MAGNETISM 34: 1361 (2021) Semantic Scholar
  12. 12. Theory of supercurrent in superconductors Koizumi, Hiroyasu
      International Journal of Modern Physics B 34: 2030001 (2020)
  13. 13. Reversible superconducting-normal phase transition in a magnetic field and the existence of topologically protected loop currents that appear and disappear without Joule heating Koizumi, Hiroyasu
      EPL 131: (2020) Semantic Scholar
  14. 14. Possible Occurrence of Superconductivity by the π-flux Dirac String Formation Due to Spin-Twisting Itinerant Motion of Electrons Koizumi, Hiroyasu
      Symmetry 12: 776-1 (2020) Semantic Scholar
  15. 15. Explanation of Superfluidity Using the Berry Connection for Many-Body Wave Functions. 小泉,裕康
      J. Supercond. Nov. Magn. 33: 1697 (2020)
  16. 16. Supercurrent Generation by Spin-Twisting Itinerant Motion of Electrons 小泉, 裕康; Manabe, Daichi
      Journal of Superconductivity and Novel Magnetism 32: 2303 (2019) Semantic Scholar
  17. 17. Magnetic field induced charge order in cuprate superconductors: an explanation by spin-vortex-induced loop currents 小泉,裕康
      J. Phys.: Conf. Ser. 1148: 012009-1 (2018)
  18. 18. Flux rule, U(1)インスタントン、超伝導 小泉, 裕康
      Meeting Abstracts of the Physical Society of Japan 73: 2300 (2018)
  19. 19. External current as a coupler between the spin- vortex-induced loop current qubits Wakaura, Hikaru; Koizumi, Hiroyasu
      J. Phys. Commun. 1: 055013 (2018) Semantic Scholar
  20. 20. スピン渦誘起ループ電流超伝導理論：電流の保存を利用した、波動関数の一価性条件を満たす波動関数の計算方法 小泉, 裕康
      Meeting Abstracts of the Physical Society of Japan 73: 1807 (2018)
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  1. 1. 応用物理 小泉,裕康 (担当:分担執筆, 範囲:ベリー位相：ディラックモノポール様特異点の出現から、スピン渦誘起ループ電流の生成まで)
    2014年4月
  2. 2. The geometric phase in quantum systems A., Bohm; A; Mostafazadeh; Q., Niu; J., Zwanziger; 小泉, 裕康
    Springer-Verlag 2003年1月
  3. 3. 新しい配位子場の科学 小泉, 裕康
    講談社 1998年1月
  4. 4. Microcluster Physics S., Sugano; H., Koizumi
    Springer-Verlag 1998年1月

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