Ward identity and electrical conductivity in hot QED

被引：32

作者：

Aarts, G ^{[1
]}

Resco, JMM ^{[1
]}

机构：

[1] Ohio State Univ, Dept Phys, Columbus, OH 43210 USA

来源：

JOURNAL OF HIGH ENERGY PHYSICS | 2002年 / 11期

关键词：

gauge symmetry; thermal field theory;

D O I：

10.1088/1126-6708/2002/11/022

中图分类号：

O412 [相对论、场论]; O572.2 [粒子物理学];

学科分类号：

摘要：

We study the Ward identity for the effective photon-electron vertex summing the ladder diagrams contributing to the electrical conductivity in hot QED at leading logarithmic order. It is shown that the Ward identity requires the inclusion of a new diagram in the integral equation for the vertex that has not been considered before. The real part of this diagram is subleading and therefore the final expressions for the electrical conductivity at leading logarithmic order are not affected.

引用

页码：447 / 468

页数：22

共 26 条

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Aarts G, 2002, J HIGH ENERGY PHYS

[2]

AARTS G, HEPLAT0209033

[3]

Arnold P, 1999, PHYS REV D, V59, DOI 10.1103/PhysRevD.59.105020

[4] Transport coefficients in high temperature gauge theories, 1. Leading-log results [J].