The point-splitting regularization of (2+1)d parity breaking models
High Energy Physics - Theory
2008-11-26 v2 Condensed Matter
Abstract
The coefficient of the Chern-Simons term in the effective action for massive Dirac fermions in three dimensions is computed by using the point-splitting regularization method. We show that in this framework no ambiguities arise. This is related to the fact that the point-splitting regularization does not introduce additional parity breaking effects, implementing one possible physical criterion in order to uniquely characterize the system.
Cite
@article{arxiv.hep-th/0011154,
title = {The point-splitting regularization of (2+1)d parity breaking models},
author = {D. G. Barci and J. F. Medeiros Neto and L. E. Oxman and S. P. Sorella},
journal= {arXiv preprint arXiv:hep-th/0011154},
year = {2008}
}
Comments
9 pages, RevTex. Minor changes, some references added