Non-perturbative thermal flows and resummations
arXiv:hep-th/0609122 · doi:10.1088/1126-6708/2006/11/026
Abstract
We construct a functional renormalisation group for thermal fluctuations. Thermal resummations are naturally built in, and the infrared problem of thermal fluctuations is well under control. The viability of the approach is exemplified for thermal scalar field theories. In gauge theories the present setting allows for the construction of a gauge-invariant thermal renormalisation group.
16 pages, eq (38) added to match published version
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