APPLICATION OF A NEW VARIATIONAL METHOD TO THE GROSS-NEVEU MODEL

被引：4
|
作者：
YAMADA, H
机构：
来源：
MODERN PHYSICS LETTERS A | 1991年 / 6卷 / 37期
关键词：
D O I：
10.1142/S0217732391003936
中图分类号：
P1 [天文学];
学科分类号：
0704 ;
摘要：
A new variational method proposed by Neveu is applied to the Gross-Neveu model. Chiral condensate is computed perturbatively at zero and finite temperatures by the use of effective potential. At both temperatures the expected results in the mean field analysis, nonzero condensate at T = 0 and restoration of gamma-5 symmetry at T not-equal 0, are recovered in an efficient manner by calculating only a few lowest order diagrams.
引用
收藏
页码：3405 / 3412
页数：8
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