Self-consistent renormalization group flow
High Energy Physics - Theory
2009-10-31 v1
Abstract
A self-consistent renormalization group flow equation for the scalar lambda phi^4 theory is analyzed and compared with the local potential approximation. The two prescriptions coincide in the sharp cutoff limit but differ with a smooth cutoff. The dependence of the critical exponent nu on the smoothness parameter and the field of expansion is explored. An optimization scheme based on the minimum sensitivity principle is employed to ensure the most rapid convergence of nu with the level of polynomial truncation.
Cite
@article{arxiv.hep-th/0010100,
title = {Self-consistent renormalization group flow},
author = {Sen-Ben Liao and Chi-Yong Lin and Michael Strickland},
journal= {arXiv preprint arXiv:hep-th/0010100},
year = {2009}
}
Comments
25 pages, 11 figures