Critical behavior of n-vector model with quenched randomness
Statistical Mechanics
2007-05-23 v2
Abstract
We consider the Ginzburg-Landau phase transition model with O(n) symmetry (i.e., the n-vector model) which includes a quenched randomness, i.e., a random temperature disorder. We have proven rigorously that within the diagrammatic perturbation theory the quenched randomness does not change the critical exponents at n tending to 0, which is in contrast to the conventional point of view based on the perturbative renormalization group theory.
Cite
@article{arxiv.cond-mat/0002149,
title = {Critical behavior of n-vector model with quenched randomness},
author = {J. Kaupuzs},
journal= {arXiv preprint arXiv:cond-mat/0002149},
year = {2007}
}
Comments
6 pages, no figures