On Gauge Invariant Wilsonian Flows
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We investigate non-Abelian gauge theories within a Wilsonian Renormalisation Group approach. Our main question is: How close can one get to a gauge invariant flow, despite the fact that a Wilsonian coarse-graining seems to be incompatible with gauge invariance? We discuss the possible options in the case of quantum fluctuations, and argue that for thermal fluctuations a fully gauge invariant implementation can be obtained.
18 pages, to be published in the proceedings of the Faro workshop on the Exact Renormalisation Group, September 1998
18 pages, to be published in the proceedings of the Faro workshop on the Exact Renormalisation Group, September 1998