Kagan, M.

2026
Springer Nature Switzerland Cham
ISBN: 9783032146212, 9783032146205

Cham : Springer Nature Switzerland, Lecture Notes in Physics 1048, : 1st ed. 2026, 1 Online-Ressource (XXI, 537 p. 139 illus., 3 illus. in color) (2026) [10.1007/978-3-032-14621-2]2026  

Abstract: Elementary excitations in solid state physics -- Ideal Bose gas -- Interacting Bogoliubov Bose gas -- Superfluid helium Sounds and vortices -- Superfluidity of the two dimensional systems. Berezinskii Kosterlitz Thouless BKT phase transition -- Phonons in the solid state physics -- Density of the phonon states Debye approximation -- Phonon spectrum in crystals with pairwise interaction. Quantization of the lattice vibrations -- Phonon distribution function. Specific heat of the crystal -- Mossbauer effect. Diagonal processes with respect to phonon occupation numbers -- Neutron scattering on crystals -- An harmonic interactions. The damping of the phonon spectrum -- Phonon thermos conductivity in crystals -- Spin waves in ferromagnets. Exchange interaction -- Basic interactions in metals. Ion ion and electron ion interaction -- Electron electron interaction. Exchange hole for the wave function of two electrons with parallel spins -- Correlation energy for the interaction of electrons with opposite spins -- Charge screening in metals in the Random phase approximation -- Metallic hydrogen -- One electron excitations in metals -- Thermodynamics of metals -- Magnetic oscillations in metals -- The Cooper problem -- Many particle problem in the theory of superconductivity -- Thermodynamics of the superconductor

Keyword(s): Condensed matter (LCSH) ; Superconductivity (LCSH) ; Superconductors (LCSH) ; Mathematical physics (LCSH) ; Magnetism (LCSH)