On Gauge Invariant Wilsonian Flows
نویسندگان
چکیده
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. DIAS-STP-99-01 ECM-UB-PF-99-02 aBased on seminars presented at the workshop on the Exact Renormalisation Group, Faro, September 1998. To be published in the proceedings.
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