Geometrical interpretation of critical exponents

We develop a hypothesis that the dynamics of equilibrium systems at criticality have their dynamics constricted to a fractal subspace. We relate the correlation fractal dimension associated with this subspace to the Fisher critical exponent controlling the singularity associated with the correlation function. This fractal subspace is different from that associated with the order parameter. We propose a relation between the correlation fractal dimension and the order parameter fractal dimension. The fractal subspace we identify has as a defining property that the correlation function is restored at the critical point by restricting the dynamics this way. We determine the correlation fractal dimension of the two-dimensional Ising model and validate it by computer simulations. We discuss growth models briefly in this context.

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Publication Details

Journal
Physical review. E
Published
2024-12-20
DOI
https://doi.org/10.1103/physreve.110.l062107
Citations
5
Primary Topic
Theoretical and Computational Physics
Type
article
Field-Weighted Citation Impact
1.55

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article

Geometrical interpretation of critical exponents

Edwin E. Mozo Luis, Fernando A. Oliveira, Alex Hansen, H. Lima et al.
5 citations
Physical review. E
Theoretical and Computational Physics
1.55
article

Geometrical interpretation of critical exponents

Edwin E. Mozo Luis, Fernando A. Oliveira, Alex Hansen, H. Lima, Ismael S. S. Carrasco
article en
5 citations

Abstract

We develop a hypothesis that the dynamics of equilibrium systems at criticality have their dynamics constricted to a fractal subspace. We relate the correlation fractal dimension associated with this subspace to the Fisher critical exponent controlling the singularity associated with the correlation function. This fractal subspace is different from that associated with the order parameter. We propose a relation between the correlation fractal dimension and the order parameter fractal dimension. The fractal subspace we identify has as a defining property that the correlation function is restored at the critical point by restricting the dynamics this way. We determine the correlation fractal dimension of the two-dimensional Ising model and validate it by computer simulations. We discuss growth models briefly in this context.

Physical review. EVol. 110(6)
Universidade de Brasília (BR), Universidade Federal Fluminense (BR), Norwegian University of Science and Technology (NO)
Conselho Nacional de Desenvolvimento Científico e Tecnológico, Fundação Carlos Chagas Filho de Amparo à Pesquisa do Estado do Rio de Janeiro, Norges Forskningsråd, Fundação de Apoio à Pesquisa do Distrito Federal
Climate action
Openalex Percentile: Top 16%
Theoretical and Computational Physics
1.55
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Geometrical interpretation of critical exponents — Edwin E. Mozo Luis, Fernando A. Oliveira, et al. · Physical review. E (2024) | TGRS Research Map | TGRS