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タイトル: Vacuum type of SU(2) gluodynamics in maximally Abelian and Landau gauges
著者: Chernodub, M.N.
Ishiguro, Katsuya
Mori, Yoshihiro link image link image
Nakamura, Yoshifumi
Polikarpov, M.I.
Sekido, Toru
Suzuki, Tsuneo link image
Zakharov, V.I.
石黒, 克也
森, 祥寛
鈴木, 恒雄
発行日: 2005年10月
出版社(者): American Physical Society
引用: Physical Review D - Particles, Fields, Gravitation and Cosmology 72 (7), pp. 1-14
雑誌名: Physical Review D - Particles, Fields, Gravitation and Cosmology
ISSN: 0056-2821
巻: 72
号: 2
開始ページ: 1
終了ページ: 14
抄録: The vacuum type of SU(2) gluodynamics is studied using Monte Carlo simulations in maximally Abelian (MA) gauge and in Landau (LA) gauge, where the dual Meissner effect is observed to work. The dual Meissner effect is characterized by the coherence and the penetration lengths. Correlations between Wilson loops and electric fields are evaluated in order to measure the penetration length in both gauges. The coherence length is shown to be fixed in the MA gauge from measurements of the monopole density around the static quark-antiquark pair. It is also shown numerically that a dimension 2 gluon operator A+A-(s) and the monopole density has a strong correlation as suggested theoretically. Such a correlation is observed also between the monopole density and A2(s)=A+A-(s)+A3A3(s) condensate if the remaining U(1) gauge degree of freedom is fixed to U(1) Landau gauge (U1LA). The coherence length is determined numerically also from correlations between Wilson loops and A+A-(s) and A2(s) in MA+U1LA gauge. Assuming that the same physics works in the LA gauge, we determine the coherence length from correlations between Wilson loops and A2(s). Penetration lengths and coherence lengths in the two gauges are almost the same. The vacuum type of the confinement phase in both gauges is near to the border between the type 1 and the type 2 dual superconductors. © 2005 The American Physical Society.
URI: http://hdl.handle.net/2297/3484
関連URI: http://dx.doi.org/10.1103/PhysRevD.72.074505
資料種別: Journal Article
出現コレクション:1. 査読済論文

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