Extreme-value statistics and super-universality in critical percolation?

Fuente: arXiv
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Auteurs principaux: Feshanjerdi, Mohadeseh, Grassberger, Peter
Format: Preprint
Publié: 2024
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author Feshanjerdi, Mohadeseh
Grassberger, Peter
author_facet Feshanjerdi, Mohadeseh
Grassberger, Peter
contents Recently, the number of non-standard percolation models has proliferated. In all these models, there exists a phase transition at which long range connectivity is established, if local connectedness increases through a threshold $p_c$. In ordinary (site or bond) percolation on regular lattices, this is a well understood second-order phase transition with rather precisely known critical exponents, but there are non-standard models where the transitions are in different universality classes (i.e. with different exponents and scaling functions), or even are discontinuous or hybrid. It was recently claimed that certain scaling functions are in all such models given by extreme-value theory and thus independent of the precise universality class. This would lead to super-universality (even encompassing first-order transitions!) and would be a major break-through in the theory of phase transitions. We show that this claim is wrong.
format Preprint
id arxiv_https___arxiv_org_abs_2401_05234
institution arXiv
publishDate 2024
record_format arxiv
spellingShingle Extreme-value statistics and super-universality in critical percolation?
Feshanjerdi, Mohadeseh
Grassberger, Peter
Statistical Mechanics
Recently, the number of non-standard percolation models has proliferated. In all these models, there exists a phase transition at which long range connectivity is established, if local connectedness increases through a threshold $p_c$. In ordinary (site or bond) percolation on regular lattices, this is a well understood second-order phase transition with rather precisely known critical exponents, but there are non-standard models where the transitions are in different universality classes (i.e. with different exponents and scaling functions), or even are discontinuous or hybrid. It was recently claimed that certain scaling functions are in all such models given by extreme-value theory and thus independent of the precise universality class. This would lead to super-universality (even encompassing first-order transitions!) and would be a major break-through in the theory of phase transitions. We show that this claim is wrong.
title Extreme-value statistics and super-universality in critical percolation?
topic Statistical Mechanics
url https://arxiv.org/abs/2401.05234