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Journal of Mathematical Physics

Self-Consistent Approximations in Many-Body Systems

M. Revzen

Published Mar 1, 1965• 7 citations
Publisher

Abstract

Baym's definition of a self-consistent approximation is rephrased in a more diagrammatic way and compared with formulations of the exact many-body problem of Balian, Bloch, and DeDominicis. It is shown that many of the results of these authors are valid for any self-consistent approximation as defined by Baym.
DOI
10.1063/1.1704293

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