The Effective Average Action Beyond First Order

2003/03/08 by H. Ballhausen, Hendrik Ballhausen, Ballhausen, H.
Mathematics · Physics and Astronomy · #FOS: Physical sciences #High Energy Physics - Theory (hep-th) #Markov Chains and Monte Carlo Methods #Stochastic processes and statistical mechanics #Theoretical and Computational Physics #hep-th

paper · pdf · doi:10.48550/arxiv.hep-th/0303070

4 pages, 1 table

openalex publication_date 2003/03/08 · arxiv created 2004/01/18 · arxiv updated 2009/11/30 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28

Abstract

A derivative expansion of the effective average action beyond first order yields renormalization group functional flow equations which are used for the computation of critical exponents of the Ising universality class. The critical exponent nu in D=3 is consistent with high-precision methods.

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