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arXiv · hep-th/0409042

The Gauge Invariant ERG

Oliver J. Rosten·Tim R. Morris·Stefano Arnone
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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.

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Oliver J. Rosten, Tim R. Morris, Stefano Arnone. 2005-08-05. The Gauge Invariant ERG. https://arxiv.org/abs/hep-th/0409042

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