摘要
在闭合时间路径温度场论基础上 ,导出了直接计算推迟和超前格林函数的一种费曼规则 .利用该费曼规则计算了3 理论中的两点自能和三点顶角函数修正 .
Based on the closed time path formalism, a deduced Feynman rule for directly calculating the retarded and advanced Green functions is given. This Feynman rule is used to calculate the two-point self-energy and three-point vertex correction in 3 theory. The generalized fluctuation-dissipation theorem for three-point nonlinear response function is verified.
出处
《高能物理与核物理》
CSCD
北大核心
2004年第7期690-695,共6页
High Energy Physics and Nuclear Physics
基金
国家自然科学基金 ( 10 13 5 0 3 0 ,10 44 0 42 0 0 18,1992 85 11,10 0 0 5 0 0 2 )资助~~
