Taking N to zero with S matrices
Statistical Mechanics
2007-05-23 v1 Strongly Correlated Electrons
Abstract
Interesting physical results can be obtained from sigma models by taking the number of fields N to zero. I discuss how one can make sense of this limit by using exact S matrix techniques. I review how this can be done for the case of self-avoiding polymers, and speculate on the application to the replica limit of disordered systems.
Cite
@article{arxiv.cond-mat/0111582,
title = {Taking N to zero with S matrices},
author = {Paul Fendley},
journal= {arXiv preprint arXiv:cond-mat/0111582},
year = {2007}
}
Comments
12 pages, 1 figure. Contribution to the proceedings of the NATO Advanced Research Workshop on Statistical Field Theories, Como 18-23 June 2001