A lattice glass model with no tendency to crystallize

TL;DR

This paper introduces a lattice glass model that mimics key features of structural glasses, such as cage effects and slow dynamics, without crystallizing upon quenching, making it useful for studying the glass transition.

Contribution

It presents a new lattice model that reproduces glassy behavior without crystallization, and analyzes its properties on Bethe lattices, revealing a scenario similar to p-spin models.

Findings

Model exhibits cage effects and vanishing diffusivity.

Does not crystallize upon slow quenching.

Displays a glass transition scenario akin to p-spin models.

Abstract

We study a lattice model with two body interactions that reproduces in three-dimensions many features of structural glasses, like cage effect and vanishing diffusivity. While having a crystalline state at low temperatures, it does not crystallize when quenched, even at the slowest cooling rate used, which makes it suitable to study the glass transition. We study the model on the Bethe lattice as well, and find a scenario typical of p-spin models, as in the Biroli Mezard model.