Abstract
We propose a new formulation of the functional renormalization group (FRG) approach, based on the use of regulator functions as composite operators. In this case one can provide (in contrast with standard approach) on-shell gauge-invariance for the effective average action.
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Lavrov, P.M., Shapiro, I.L. New method of the functional renormalization group approach for Yang-Mills fields. Phys. Part. Nuclei Lett. 11, 886–889 (2014). https://doi.org/10.1134/S1547477114070292
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DOI: https://doi.org/10.1134/S1547477114070292