Linear Covariant Gauges on the Lattice
High Energy Physics - Lattice
2009-01-27 v2
Abstract
Linear covariant gauges, such as Feynman gauge, are very useful in perturbative calculations. Their nonperturbative formulation is, however, highly non-trivial. In particular, it is a challenge to define linear covariant gauges on a lattice. We consider a class of gauges in lattice gauge theory that coincides with the perturbative definition of linear covariant gauges in the formal continuum limit. The corresponding gauge-fixing procedure is described and analyzed in detail, with an application to the pure SU(2) case. In addition, results for the gluon propagator in the two-dimensional case are given.
Cite
@article{arxiv.0806.3124,
title = {Linear Covariant Gauges on the Lattice},
author = {Attilio Cucchieri and Axel Maas and Tereza Mendes},
journal= {arXiv preprint arXiv:0806.3124},
year = {2009}
}
Comments
21 pages, 6 figures, 5 tables; added comments and minor changes, 1 figure added, 1 modified