Perimeter Institute for Theoretical Physics
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