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  1. 計算科学研究センター (Center for Computational Sciences)
  2. 小泉 裕康 (Koizumi Hiroyasu)
  1. コンテンツタイプ (Contents Type)
  2. 雑誌発表論文等 (Journal article, etc.)
  3. J~
  4. Journal of superconductivity and novel magnetism

Flux Rule, U(1) Instanton, and Superconductivity

http://hdl.handle.net/2241/00149327
8544630f-7aaf-4d1d-84c9-447ea2401803
プレビュー
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JSNM_30-12-3345.pdf JSNM_30-12-3345 (103.2 kB)
item type Journal Article(1)
公開日 2017-12-15
タイトル
タイトル Flux Rule, U(1) Instanton, and Superconductivity
言語
言語 eng
資源タイプ
タイプ journal article
著者 Koizumi, Hiroyasu

× Koizumi, Hiroyasu

WEKO 177846

Koizumi, Hiroyasu

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著者別名 小泉, 裕康

× 小泉, 裕康

WEKO 204265
e-Rad 60240959
筑波大学研究者総覧 0000000777

小泉, 裕康

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抄録
内容記述 We examine some consequences of the duality that a U(1) phase factor added on a wave function describes a whole system motion and also plays the role of a U(1) gauge potential. First, we show that the duality solves a long-standing puzzling problem that the ‘flux rule’ (the Faraday’s induction formula) and the Lorentz force calculation for an emf emerging in an electron system moving in a magnetic field give the same result (Feynman et al. 1963). Next, we examine a U(1) phase factor induced on the wave function for an electron system due to the single-valuedness requirement of the wave function with respect to the electron coordinates, and its consequential appearance of a U(1) instanton. This instanton explains the Meissner effect, supercurrent generation, flux quantization in the units of h2e, and the voltage quantization in the units of hf2e across the Josephson junction in the presence of a radiation field with frequency f. In the experiment, a radiation field must be present to have a finite voltage across the Josephson junction; but a clear explanation for it has been lacking. The present work provides an explanation for it, and also explains the high precision of the quantized voltage as due to a topological effect.
書誌情報 Journal of superconductivity and novel magnetism

巻 30, 号 12, p. 3345-3349, 発行日 2017-08
ISSN
収録物識別子 1557-1939
書誌レコードID
収録物識別子 AA12092103
DOI
関連識別子
関連識別子 10.1007/s10948-017-4302-3
権利
権利情報 © Springer Science+Business Media New York 2017
権利
権利情報 The final publication is available at Springer via http://dx.doi.org/10.1007/s10948-017-4302-3
著者版フラグ
値 author
出版者
出版者 Springer US
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