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Diagram Expansions in Nonequilibrium Statistical Mechanics Classical Limit Considerations
Author(s) -
Der R.,
Fritzsche S.,
Haberlandt R.
Publication year - 1982
Publication title -
annalen der physik
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.009
H-Index - 68
eISSN - 1521-3889
pISSN - 0003-3804
DOI - 10.1002/andp.19824940605
Subject(s) - limit (mathematics) , diagram , non equilibrium thermodynamics , physics , classical limit , statistical physics , statistical mechanics , symmetry (geometry) , quantum statistical mechanics , quantum , quantum mechanics , mathematical physics , mathematical analysis , mathematics , statistics , geometry
A diagram expansion is proposed for calculating traces of the kind Tr{Ae −itL B } which are of interest for calculating time correlation functions and expectation values in nonequilibrium statistical mechanics. Arbitrary initial conditions are considered. In the classical limit the diagram expansion of FUJITA is obtained. A systematic method for obtaining quantum corrections including exchange and symmetry effects is proposed.