Low-frequency correlation functions in case of nonlinear dynamics of fluctuations

V.G. Morozov

Physica A: Statistical Mechanics and its Applications, 1982, vol. 110, issue 1, 201-221

Abstract: A method is developed for calculating low-frequency asymptotic correlation functions of basic operators “âm” which correspond to gross variables describing a nonequibliriium state of a system. We have introduced a Weyl operator, its nonequilibrium average value being considered as a quantum distribution function of gross variables. The generalized Fokker-Planck equation is then derived for the distribution function. This equation is used for obtaining a chain of equations for asymptotic correlation functions containing only Weyl operator functions of “âm”. The kinetic coefficients and self-energy are expressed in terms of irreducible correlation functions which correspond to effects of nonlinear dynamics of fluctuations. It is shown in our approach that hydrodynamic modes may be considered as a zero order approximation. As an application of the formalism the generalized mode-mode coupling approximation is investigated.

Date: 1982
References: View complete reference list from CitEc
Citations:

Downloads: (external link)
http://www.sciencedirect.com/science/article/pii/037843718290111X
Full text for ScienceDirect subscribers only. Journal offers the option of making the article available online on Science direct for a fee of $3,000

Related works:
This item may be available elsewhere in EconPapers: Search for items with the same title.

Export reference: BibTeX RIS (EndNote, ProCite, RefMan) HTML/Text

Persistent link: https://EconPapers.repec.org/RePEc:eee:phsmap:v:110:y:1982:i:1:p:201-221

DOI: 10.1016/0378-4371(82)90111-X

Access Statistics for this article

Physica A: Statistical Mechanics and its Applications is currently edited by K. A. Dawson, J. O. Indekeu, H.E. Stanley and C. Tsallis

More articles in Physica A: Statistical Mechanics and its Applications from Elsevier
Bibliographic data for series maintained by Catherine Liu ().