The Gauge Invariant ERG
High Energy Physics - Theory
2007-05-23 v2
Abstract
We sketch the construction of a gauge invariant Exact Renormalization Group (ERG). Starting from Polchinski's equation, the emphasis is on how a series of ideas have combined to yield the gauge invariant formalism. A novel symmetry of the ERG allows the flow equation to be modified, in such a way that it is suitable for the computation of the (universal) two-loop beta-function. This computation has now been performed, within the framework of the ERG and, as such, in a manifestly gauge invariant way for the very first time.
Cite
@article{arxiv.hep-th/0409042,
title = {The Gauge Invariant ERG},
author = {Oliver J. Rosten and Tim R. Morris and Stefano Arnone},
journal= {arXiv preprint arXiv:hep-th/0409042},
year = {2007}
}
Comments
10 pages, 1 figure. Proceeding of Quarks-2004, Pushkinskie Gory, Russia, May 24-30. v2: minor corrections compared to published version