Constructing non-perturbative gauges using correlation functions
Abstract
Gauge fixing in the non-perturbative domain of non-Abelian gauge theories is obstructed by the Gribov-Singer ambiguity. To compare results from different methods it is necessary to resolve this ambiguity explicitly. Such a resolution is proposed using conditions on correlation functions for a family of non-perturbative Landau gauges. As a consequence, the various results available for correlation functions could possibly correspond to different non-perturbative Landau gauges, discriminated by an additional non-perturbative gauge parameter. The proposal, the necessary assumptions, and evidence from lattice gauge theory calculations, are presented in detail.
Cite
@article{arxiv.0907.5185,
title = {Constructing non-perturbative gauges using correlation functions},
author = {Axel Maas},
journal= {arXiv preprint arXiv:0907.5185},
year = {2010}
}
Comments
in v2: Various modifications, discussion of results and scenario extended, references added in v3: Discussed definitions of what a Gribov ambiguity, a resolution of the ambiguity, and a Gribov problem is. Various minor improvements