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. |
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Rok vydání: | 2008 |
Předmět: | |
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 |
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