The induced Chern-Simons term at finite temperature

被引：6
|
作者：
Salcedo, LL [1 ]
机构：
[1] Univ Granada, Dept Fis Moderna, E-18071 Granada, Spain
来源：
PHYSICS LETTERS B | 2002年 / 530卷 / 1-4期
关键词：
finite temperature; Chern-Simons; three dimensions; effective action; gauge invariance;
D O I：
10.1016/S0370-2693(02)01347-3
中图分类号：
P1 [天文学];
学科分类号：
0704 ;
摘要：
It is argued that the derivative expansion is a suitable method to deal with finite temperature field theory, if it is restricted to spatial derivatives only. Using this method, a simple and direct calculation is presented for the radiatively induced Chern-Simons-like piece of the effective action of (2 + 1)-dimensional fermions at finite temperature coupled to external gauge fields. The gauge fields are not assumed to be subjected to special constraints, and in particular, they are not required to be stationary nor Abelian. (C) 2002 Elsevier Science B.V. All rights reserved.
引用
收藏
页码：244 / 250
页数：7
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