A hierarchy of equations for finite temperature Green functions

Lambert, Colin (1981) A hierarchy of equations for finite temperature Green functions. physica status solidi (b), 107 (2). pp. 435-441. ISSN 0370-1972

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Abstract

Employing a new theorem on time ordered products of operators, an infinite hierarchy of equations for the finite temperature Green functions of a many particle system is obtained. The analysis provides a basis for the extension to finite temperatures of recent results from ground state perturbation theory. The connection between the present analysis and the corresponding ground state formalism is briefly discussed.

Item Type: Journal Article
Journal or Publication Title: physica status solidi (b)
Uncontrolled Keywords: /dk/atira/pure/researchoutput/libraryofcongress/qc
Subjects:
Departments: Faculty of Science and Technology > Physics
ID Code: 58053
Deposited By: ep_importer_pure
Deposited On: 22 Oct 2012 09:51
Refereed?: Yes
Published?: Published
Last Modified: 30 Sep 2019 16:55
URI: https://eprints.lancs.ac.uk/id/eprint/58053

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