Solutions of renormalization group flow equations with full momentum dependence

Autor:	Benitez, F., Blaizot, J. -P., Chate, H., Delamotte, B., Mendez-Galain, R., Wschebor, N.
Rok vydání:	2008
Předmět:	Condensed Matter - Statistical Mechanics High Energy Physics - Phenomenology High Energy Physics - Theory
Zdroj:	Phys.Rev.E80:030103,2009
Druh dokumentu:	Working Paper
DOI:	10.1103/PhysRevE.80.030103
Popis:	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. Comment: 4 pages, 1 figure
Databáze:	arXiv
Externí odkaz:	http://arxiv.org/abs/0901.0128 Zobrazit plný text záznamu View this record from Arxiv