Hedin's equations and enumeration of Feynman's diagrams
Strongly Correlated Electrons
2007-05-23 v2 Nuclear Theory
Abstract
Hedin's equations are solved perturbatively in zero dimension to count Feynman graphs for self-energy, polarization, propagator, effective potential and vertex function in a many-body theory of fermions with two-body interaction. Counting numbers are also obtained in the GW approximation.
Keywords
Cite
@article{arxiv.cond-mat/0401500,
title = {Hedin's equations and enumeration of Feynman's diagrams},
author = {Luca G. Molinari},
journal= {arXiv preprint arXiv:cond-mat/0401500},
year = {2007}
}
Comments
Revised published version, 3 pages, no figures