SUBJECT
Title
Many-particle physics I
Type of instruction
lecture
Level
master
Faculty
Part of degree program
Credits
3
Recommended in
Semester 2
Typically offered in
Spring semester
Course description
Occupation number representation
Finite temperature Green’s function, calculation of thermodynamical quantities by the Green’s function.
Perturbation theory, Feynman’s graphs.
Electron gas, Thomas-Fermi approximation, RPA (random phase approximation), correlation energy at zero temperature and in plasma, strong electrolytes, screening of charges
Quasiparticles, spectral function, retarded Green’s function, quasiparticles in electron gas.
Density fluctuation propagator. Determination of collective excitations, Plasma oscillations, Landau damping in plasma.
Readings
required readings:
- Szirmai Gergely, Szépfalusy Péter: Soktestprobléma (lecture notes in Hungarian)
recommended readings:
- L. D. Landau, E. M. Lifshitz, Statistical Physics, Part 2, Elsevier, 2013.
- L. D. Landau, E. M. Lifshitz, Physical Kinetics, Part 2, Elsevier, 2013.
- A. L. Fetter and J. D. Walecka: Quantum Theory of Many-Particle Systems, McGrow-Hill, New York, 1971