Glassiness in Simple Liquids

TL;DR

This paper revises the concept of glassiness in simple liquids, analyzing how it varies with density, temperature, and attractive interactions, to better understand the liquid-glass transition.

Contribution

It introduces a revised analysis of glassiness in liquids, incorporating attractive potentials and extending previous models to include temperature effects.

Findings

Glassiness increases with density in hard sphere liquids.

Attractive potentials influence the glassiness, especially at different temperatures.

The model provides a unified framework for understanding liquid and glass states.

Abstract

In previous work the parameter of glassiness was introduced to distinguish between a liquid and a glass, using a formal analogy with the quantum Bose system. The glassiness is defined in such a way that it is unity in a frozen system and less than one in a liquid. In the present letter we revise first the results obtained for the glassiness in a hard sphere liquid as a function of the density. Then we investigate the influence of an attractive potential by obtaining the glassiness as a function of the density, temperature and the attractive tail when a square well potential is added to the hard core.