Solutions of renormalization group flow equations with full momentum dependence
Statistical Mechanics
2009-11-19 v1 High Energy Physics - Phenomenology
High Energy Physics - Theory
Abstract
We demonstrate the power of a recently-proposed approximation scheme for the non-perturbative renormalization group that gives access to correlation functions over their full momentum range. We solve numerically the leading-order flow equations obtained within this scheme, and compute the two-point functions of the O(N) theories at criticality, in two and three dimensions. Excellent results are obtained for both universal and non-universal quantities at modest numerical cost.
Cite
@article{arxiv.0901.0128,
title = {Solutions of renormalization group flow equations with full momentum dependence},
author = {F. Benitez and J. -P. Blaizot and H. Chate and B. Delamotte and R. Mendez-Galain and N. Wschebor},
journal= {arXiv preprint arXiv:0901.0128},
year = {2009}
}
Comments
4 pages, 1 figure