204
13 Polarization Propagator
13.2 Draw and evaluate the Feynman diagrams comprised in the second-order
Abrikosov diagram 2E in Fig. 13.3.
13.3 Evaluate the first-order Goldstone diagrams (a) and (b) in Fig. 13.4.
13.4 Adapt the matrix representation of diagrams presented in Sect. 6.3 to the
Abrikosov diagrams for the polarization propagator. Use the matrix concept
to establish the five second-order diagrams in Fig. 13.3.
References
1. Baym G (1962) Phys. Rev. 127:1391
2. Salpeter EE, Bethe HA (1951) Phys. Rev. 84:1232
13 Polarization Propagator
13.2 Draw and evaluate the Feynman diagrams comprised in the second-order
Abrikosov diagram 2E in Fig. 13.3.
13.3 Evaluate the first-order Goldstone diagrams (a) and (b) in Fig. 13.4.
13.4 Adapt the matrix representation of diagrams presented in Sect. 6.3 to the
Abrikosov diagrams for the polarization propagator. Use the matrix concept
to establish the five second-order diagrams in Fig. 13.3.
References
1. Baym G (1962) Phys. Rev. 127:1391
2. Salpeter EE, Bethe HA (1951) Phys. Rev. 84:1232