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Reference System Approach in the Electron Liquid Theory. IV. Momentum Distribution
Author(s) -
Vavrukh M.,
Vavrukh N.
Publication year - 1994
Publication title -
physica status solidi (b)
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.51
H-Index - 109
eISSN - 1521-3951
pISSN - 0370-1972
DOI - 10.1002/pssb.2221860113
Subject(s) - universality (dynamical systems) , momentum (technical analysis) , physics , electron , distribution function , distribution (mathematics) , local field , statistical physics , mathematical physics , quantum mechanics , mathematics , mathematical analysis , condensed matter physics , finance , economics
Abstract The problem of universality and limitation of the local‐field conception in modern theory of many‐particle interacting systems is considered on the example of the calculation of momentum distribution. On the basis of the variational derivative δG(q, v)/δϵ k (where G(q, v) is the dynamic local‐field correction function, E k = h 2 k 2 /2m) the momentum distribution in the model of the electron liquid in a wide region of the coupling parameter r s is investigated.