Wilsonian Renormalization Group In The Functional Nonperturbative\n Approach

2020/02/29 by Gian Paolo Vacca, Vacca, Gian Paolo
Mathematics · Physics and Astronomy · #Black Holes and Theoretical Physics #FOS: Physical sciences #High Energy Physics - Theory (hep-th) #Markov Chains and Monte Carlo Methods #Quantum many-body systems #Stochastic processes and statistical mechanics #Theoretical and Computational Physics

paper · pdf · doi:10.48550/arxiv.2003.00373

openalex publication_date 2020/02/29 · openalex created_date 2022/07/26 · openalex updated_date 2026/07/28

Abstract

We consider a functional relation between a given Wilsonian RG flow, which\nhas to be related to a specific coarse-graining procedure, and an infinite\nfamily of (UV cutoff) scale dependent field redefinitions. Within this\nframework one can define a family of Wilsonian proper-time exact RG equations\nassociated to an arbitrary regulator function. New applications of these RG\nflow schemes to the Ising Universality class in three dimensions in the\nderivative expansion are shortly illustrated.\n

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