Virasoro Algebra and O(N) Sigma Model
High Energy Physics - Theory
2009-10-30 v2
Abstract
Within the framework of a local expansion of the logarithm of the O(N) sigma-model vacuum functional, valid for slowly varying fields, the modified Virasoro algebra is studied. The operator-like central charge term is given, up to second order, for a general functional.
Cite
@article{arxiv.hep-th/9705119,
title = {Virasoro Algebra and O(N) Sigma Model},
author = {Jiannis Pachos},
journal= {arXiv preprint arXiv:hep-th/9705119},
year = {2009}
}
Comments
13 pages, REVTEX, no figures