General Computations Without Fixing the Gauge

Details General Computations Without Fixing the Gauge General Computations Without Fixing the Gauge

2006-04-25

arxiv.org/abs/hep-th/0604183v2

Phys.Rev.D74:125006,2006

Physics

High Energy Physics

High Energy Physics - Theory

11 pages, 5 figures. v2: published in prd, review of methodology shortened, refs added, reformatted

Scientific paper

10.1103/PhysRevD.74.125006

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.

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