Condensed Matter Physics, 1995, No. 6, p. 155-195, English
DOI:10.5488/CMP.6.155
Title: Reference system approach in the electron liquid theory
Autors: M.Vavrukh, V.Paslavskii, O.Blazhyewskii
The fundamentals of a reference system approach, which is a
renormalized perturbation theory in the terms of n-particle
correlation functions for the simplest system (reference system,
are expounded in the theory of electron liquid.
Functional representation of the partition function, thermodynamic and
correlation functions, and one-particle characteristics for the
electron liquid model are represented. The results of energy,
structure and dielectric characteristic calculation in
paramagnetic and superconductive states are given.
Reference system approach has been used for the description of
inhomogeneous electron system. Also it has been generalized on
models, which are closely spaced to electron liquid model:
two-sort fermion system model, fermion system model with a
short-range repulsion potential of interaction between the
particles, fermion system model with a manyparticle interaction
potential, and so on.