Applications of Feynman diagram technique
given by Michele Fabrizio
Start: 11-01-2021 End: 26-02-2021 Room: 131
In the course I shall present some practical applications of the Feynman diagram technique discussed in the preceding course. In particular, I will cover the following topics:
- Hamiltonian of matter coupled to a quantised electromagnetic field. Meaning and consequences of gauge invariance. Optical response of a metal.
- Landau-Fermi liquid theory.
- Conserving Hartree-Fock approximation applied to model band insulators, and the emergence of excitons.
- Disordered metals.