General Computations Without Fixing the Gauge
高能物理 - 理论
2008-11-26 v2 高能物理 - 唯象学
摘要
Within the framework of a manifestly gauge invariant exact renormalization group for SU(N) Yang-Mills, we derive a simple expression for the expectation value of an arbitrary gauge invariant operator. We illustrate the use of this formula by computing the O(g^2) correction to the rectangular, Euclidean Wilson loop with sides T >> L. The standard result is trivially obtained, directly in the continuum, for the first time without fixing the gauge. We comment on possible future applications of the formalism.
引用
@article{arxiv.hep-th/0604183,
title = {General Computations Without Fixing the Gauge},
author = {Oliver J. Rosten},
journal= {arXiv preprint arXiv:hep-th/0604183},
year = {2008}
}
备注
11 pages, 5 figures. v2: published in prd, review of methodology shortened, refs added, reformatted