English

Nonextensive percolation and Lee-Yang edge singularity from nonextensive $\lambda\phi^{3}$ scalar field theory

High Energy Physics - Theory 2022-08-26 v2 Statistical Mechanics

Abstract

We compute the critical exponents for nonextensive λϕ3\lambda\phi^{3} scalar field theory for all loop orders and q1<1|q - 1| < 1. We apply the results for both nonextensive percolation and Lee-Yang edge singularity problems. The corresponding systems are nonextensive generalizations of their extensive counterparts. For that we employ tools from the recently introduced nonextensive statistical field theory. The results for the nonextensive critical exponents computed depend on the nonextensive parameter qq, which encodes global correlations among the degrees of freedom of the system. The extensive results are recovered in the limit q1q\rightarrow 1. There is an interplay between global correlations and fluctuations, once the nonextensive critical exponents depend on qq. This dependence is in agreement with the universality hypothesis.

Keywords

Cite

@article{arxiv.2203.15033,
  title  = {Nonextensive percolation and Lee-Yang edge singularity from nonextensive $\lambda\phi^{3}$ scalar field theory},
  author = {P. R. S. Carvalho},
  journal= {arXiv preprint arXiv:2203.15033},
  year   = {2022}
}

Comments

16 pages, VIII Tables

R2 v1 2026-06-24T10:28:57.418Z