摘要
采用有限温度下维数正规化的方法在任意协变规范下精确地计算了双圈ＱＥＤ的热力学势及其交叉发散．计算表明交叉发散彼此相消且所得的结果与规范的选取无关．
The dimensional regularization at finite temperature is applied to calculate accurately the thermodynamic potential of two-loop QED and the overlapping divergences at arbitrary gauge.It indicates that the overlapping divergences are cancelled with each other and the result is gauge-independent.
出处
《高能物理与核物理》
EI
CSCD
北大核心
1995年第11期998-1004,共7页
High Energy Physics and Nuclear Physics
基金
国家自然科学基金
关键词
双圈
热力学势
交叉发散
规范无关
Two-loop termodynamic potential,overlapping divergence,Gauge-independent.
