Parquet theory for correlated thermodynamic Greens functions

Details Parquet theory for correlated thermodynamic Greens functions Parquet theory for correlated thermodynamic Greens functions

2009-11-09

arxiv.org/abs/0911.1668v1

Prog. Theor. Phys. 123 (2009), 327-337

Physics

Condensed Matter

Statistical Mechanics

10 pges, 1 figure

Scientific paper

10.1143/PTP.123.327

We address the problem of finding self-consistent parquet equations for two-body correlated Greens functions that arise out of a cumulant expansion. The general theory as developed for non-relativistic electron systems reproduces the conventional two-body parquet diagrammatic technique for the vertex functions. As an application, the crossing-invariant linearized basic parquet equations are treated for the correlated two-particle Greens function.

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