It covers the basics of classical field theory, free quantum theories and Feynman diagrams.
2
结果表明零温场论中的红外发散和由温度效应引起的红外发散可以用描写虚过程的费曼图同时消除。
It turns out that both of the infrared divergence at the zero and finite temperature can be cancelled by the identical Feynman diagram of virtual processes.
3
得到的主要结果有两个:(1)在研究非磁性杂质散射效应时,建立了关于非磁性杂质散射的费曼图规则。
Our results are as follows:(1) The Feymann rules are obtained for the effects of nonmagnetic impurity scattering in theDDW state.