Thermodynamic formalism and large deviation principle of multiplicative Ising models

TL;DR

This paper extends the thermodynamic analysis and large deviation principles of Ising models with 2-multiple Hamiltonians to higher dimensions and broader classes of long-range interactions, providing a comprehensive theoretical framework.

Contribution

It generalizes previous results on Ising models and large deviations to multidimensional lattices and complex interaction structures.

Findings

Extended thermodynamic results to $ abla^d$ lattices.

Established LDP for 2-multiple sums in new settings.

Generalized models to include broad classes of long-range interactions.

Abstract

The aim of this study is tree-fold. First, we investigate the thermodynamics of the Ising models with respect to 2-multiple Hamiltonians. This extends the previous results of [Chazotte and Redig, Electron. J. Probably., 2014] to $\mathbb{N}^d$. Second, we establish the large deviation principle (LDP) of the average $\frac{1}{N} S_N^G$, where $S_N^G$ is a 2-multiple sum along a semigroup generated by k numbers which are k co-primes. This extends the previous results [Ban et al. Indag. Math., 2021] to a board class of the long-range interactions. Finally, the results described above are generalized to the multidimensional lattice $\mathbb{N}^d, d\geq1$.