PSI 2016/2017 - Condensed Matter (Marsiglio)

BCS theory and gap equation

Cooper pair program, BCS microscopic approach

Two-site Hubbard model. Introduction to superconductivity.

Ferromagnetism, Holstein_Primakoff transformation, Hubbard model

Magnetism: exchange interaction, Heisenberg Hamiltonian

Screening of a charge in the electron gas, Lindhard function

Angle-resolved photoemission spectroscopy and its application to polaron problem. Interacting electrons and Hartree-Fock approximation.

Polaron, electron-phonon interactions, Holstein model

Einstein and Debye models, detecting phonons: neutron scattering

Ionic vibrations, phonons, phonon quantization

Density functional theory

Tight-binding models, Density of States