Cumbersome
发表于 2025-3-30 10:22:01
y-body resolvent operator taken with respect to states of . or . electrons. This indicates that the physics conveyed by the electron propagator relates to excitations of the system following the addition of one electron (.)or the removal of one electron (.). We shall refer exclusively to the electro
戏法
发表于 2025-3-30 14:32:00
Bum Sik Tae,Chang Wook Jeongrm. This is accomplished by inspecting the set of . time-ordered or Goldstone diagrams associated with a given .th-order Feynman (or Abrikosov) diagram. The rules for drawing and evaluating the time-ordered diagrams are presented in Sect. .. A derivation of the Goldstone rules is given in Appendix A