Schwinger-Dyson equations and disorder
High Energy Physics - Phenomenology
2013-05-29 v1 High Energy Physics - Theory
Abstract
Using simple models in D=0+0 and D=0+1 dimensions we construct partition functions and compute two-point correlations. The exact result is compared with saddle-point approximation and solutions of Schwinger-Dyson equations. When integrals are dominated by more than one saddle-point we find Schwinger-Dyson equations do not reproduce the correct results unless the action is first transformed into dual variables.
Cite
@article{arxiv.1106.5528,
title = {Schwinger-Dyson equations and disorder},
author = {Adam P. Szczepaniak and Hugo Reinhardt},
journal= {arXiv preprint arXiv:1106.5528},
year = {2013}
}
Comments
7 pages, 6 figures