Mutual thermal equilibrium in long-range Ising model using nonadditive entropy

TL;DR

This paper explores how mutual thermal equilibrium in long-range Ising models can be understood through nonadditive entropy, emphasizing the role of nonadditive composition rules in such systems.

Contribution

It demonstrates the application of nonadditive entropy to describe mutual equilibrium in long-range interacting systems like the Ising model, highlighting the generality of entropy composition rules.

Findings

Nonadditive entropy effectively describes mutual equilibrium in long-range systems.

The product form of system entropies is a general feature in this framework.

Long-range Ising model serves as a key example for this approach.

Abstract

Mutual equilibrium in long-range interacting systems which involve nonadditive energy, is effectively described in terms of entropy with a nonadditive composition rule. As an example, long range Ising model is considered. The generality of the term having product of the system entropies is pointed out in this framework.