MATRIX MODEL APPROACH TO THE FLUX-LATTICE MELTING IN 2-DIMENSIONAL SUPERCONDUCTORS

被引：3
|
作者：
FUJITA, A
HIKAMI, S
机构：
[1] Department of Pure and Applied Sciences, University of Tokyo, Meguro-ku, Tokyo 153
来源：
PHYSICAL REVIEW B | 1995年 / 51卷 / 22期
关键词：
D O I：
10.1103/PhysRevB.51.16259
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
We investigate a gauged matrix model in the large-N limit that is closely related to the superconductor fluctuation and the flux-lattice melting in two dimensions. With the use of the saddle-point method, the free energy is expanded up to eighth order for the coupling constant g. In the case that the coefficient of the quadratic term of the Ginzburg-Landau matrix model is negative, a critical point g=gc is obtained in the large-N limit and the relation between this phase transition and the two-dimensional flux-lattice melting transition is discussed. © 1995 The American Physical Society.
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页码：16259 / 16266
页数：8
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