COMPUTING SPECTRAL DENSITIES IN FINITE-TEMPERATURE FIELD-THEORY

被引：69

作者：

JEON, SY

机构：

[1] Physics Department FM-15, University of Washington, Seattle

来源：

PHYSICAL REVIEW D | 1993年 / 47卷 / 10期

关键词：

D O I：

10.1103/PhysRevD.47.4586

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

Convenient Cutkosky-like diagrammatic rules for computing the spectral densities of arbitrary two-point correlation functions in finite temperature field theory are derived. The approach is based on an explicit analytic continuation of imaginary-time Feynman diagrams. The application of this method to the perturbative evaluation of transport coefficients is briefly discussed.

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页码：4586 / 4607

页数：22

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