Grassmann Integral Topological Invariants
High Energy Physics - Theory
2007-05-23 v1
Abstract
Partition functions of some two-dimensional statistical models can be represented by means of Grassmann integrals over loops living on two-dimensional torus. It is shown that those Grassmann integrals are topological invariants, which depend only on the winding numbers of the loops. The fact makes possible to evaluate the partition functions of the models and the statistical mean values of certain topological characteristics (indices) of the configurations, which behave as the (topological) order parameters.
Cite
@article{arxiv.hep-th/9212133,
title = {Grassmann Integral Topological Invariants},
author = {C. Klimcik},
journal= {arXiv preprint arXiv:hep-th/9212133},
year = {2007}
}
Comments
18 pages, plain TeX, 8 Figures (upon request), PRA-HEP-92/7