Two loop results from the derivative expansion of the blocked action
High Energy Physics - Theory
2009-10-30 v1 Condensed Matter
High Energy Physics - Phenomenology
Abstract
A derivative expansion of the Wegner-Houghton equation is derived for a scalar theory. The corresponding full non-perturbative renormalization group equations for the potential and the wave-function renormalization function are presented. We also show that the two loop perturbative anomalous dimension for the O(N) theory can be obtained by means of a polynomial truncation in the field dependence in our equations.
Keywords
Cite
@article{arxiv.hep-th/9712038,
title = {Two loop results from the derivative expansion of the blocked action},
author = {Alfio Bonanno and Dario Zappala'},
journal= {arXiv preprint arXiv:hep-th/9712038},
year = {2009}
}
Comments
4 pages, RevTeX, no figures