Surface Tension in Kac Glass Models

TL;DR

This paper investigates the concept of surface tension in Kac glass models by analyzing the free-energy cost of maintaining metastable states at specific distances, using a disordered microscopic framework solvable in the mean-field limit.

Contribution

It introduces a distance-dependent surface tension measure in Kac glass models and provides a mean-field solution for this quantity.

Findings

Quantifies surface tension as free-energy cost between metastable states.

Provides a solvable mean-field approach for disordered Kac models.

Enhances understanding of metastability in glassy systems.

Abstract

In this paper we study a distance-dependent surface tension, defined as the free-energy cost to put metastable states at a given distance. This will be done in the framework of a disordered microscopic model with Kac interactions that can be solved in the mean-field limit.