Journal
JOURNAL OF STATISTICAL MECHANICS-THEORY AND EXPERIMENT
Volume -, Issue -, Pages -Publisher
IOP PUBLISHING LTD
DOI: 10.1088/1742-5468/aa9dcc
Keywords
critical exponents and amplitudes
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The critical behavior of the (n + 1)-states Potts model in d-dimensions is studied with functional renormalization group techniques. We devise a general method to derive ss-functions for continuous values of d and n and we write the flow equation for the effective potential (LPA') when instead n is fixed. We calculate several critical exponents, which are found to be in good agreement with Monte Carlo simulations and epsilon-expansion results available in the literature. In particular, we focus on Percolation (n -> 0) and Spanning Forest (n -> -1) which are the only non-trivial universality classes in d = 4,5 and where our methods converge faster.
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