Klyukanov, Alexandr2024-09-102024-09-102009KLYUKANOV, Alexandr. Multiquantum kinetic equation and charge density fluctuations. Solid State Communications, 2009. vol. 149, pp. 476-480. ISSN 0038-1098.0038-1098https://msuir.usm.md/handle/123456789/16013https://doi.org/10.1016/j.ssc.2008.12.033KLYUKANOV, Alexandr. Multiquantum kinetic equation and charge density fluctuations. Solid State Communications, 2009. vol. 149, pp. 476-480. ISSN 0038-1098.A multiquantum integral equation for the longitudinal dielectric function is derived accounting for of pair correlations. The Heisenberg equation of motion and fluctuation-dissipation theorem has been used to calculate a microscopic polarization. It has been shown that a kinetic equation for a polarization may be represented as a power series in fluctuations of instantaneous field near the mean field. Direct Coulomb pair correlations have been evaluated explicitly by means of a fluctuation-dissipation theorem. The energy and the effective mass of an electron of momentum k in the degenerate electron system and damping of one-electron states have been computed at rs ≥ 1.enMetalsExchangeElectron–electron interactionsFluctuationsArticle