Spectral properties of four-time fermionic Green's functions
Statistical Mechanics
2017-02-13 v3 Strongly Correlated Electrons
Abstract
The spectral relations for the four-time fermionic Green's functions are derived in the most general case. The terms which correspond to the zero-frequency anomalies, known before only for the bosonic Green's functions, are separated and their connection with the second cumulants of the Boltzmann distribution function is elucidated. The high-frequency expansions of the four-time fermionic Green's functions are provided for different directions in the frequency space.
Keywords
Cite
@article{arxiv.1512.04687,
title = {Spectral properties of four-time fermionic Green's functions},
author = {A. M. Shvaika},
journal= {arXiv preprint arXiv:1512.04687},
year = {2017}
}
Comments
14 pages