Gauge dependence of effective average action
arXiv:2004.00317 · doi:10.1134/S1063778820060216
Abstract
The gauge dependence of effective average action in the functional renormalization group is studied. The effective average action is considered as non-perturbative solution to the flow equation which is the basic equation of the method. It is proven that at any scale of IR cutoff the effective average action depends on gauges making impossible physical interpretation of all obtained results in this method.
arXiv comment9 pages, a talk given at Session-conference of Physical Science Branch of RAS, Novosibirsk, March 10-12, 2020, misprints corrected, published version
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