3-POINT FUNCTION AT FINITE TEMPERATURE IN THE REAL-TIME FORMALISM

被引：28
|
作者：
KOBES, R
机构：
[1] Department of Physics, University of Winnipeg, Winnipeg, MAN. R3B 2E9
来源：
PHYSICAL REVIEW LETTERS | 1991年 / 67卷 / 11期
关键词：
D O I：
10.1103/PhysRevLett.67.1384
中图分类号：
O4 [物理学];
学科分类号：
0702 ;
摘要：
One-particle-irreducible amputated graphs differ qualitatively at finite temperature when calculated in the imaginary-time and real-time formalisms. Here we show within the real-time formalism for the three-point function that when external propagators are attached certain amputated functions can be inferred which have a close relation to those of the imaginary-time formalism.
引用
收藏
页码：1384 / 1387
页数：4
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