The beta-relaxation dynamics of a simple liquid

TL;DR

This paper investigates the beta-relaxation dynamics of a simple Lennard-Jones glass-forming liquid, confirming that mode-coupling theory accurately describes its behavior in this regime.

Contribution

It provides a detailed validation of mode-coupling theory predictions, including recent corrections, for the beta-relaxation dynamics of a simple glass former.

Findings

Mode-coupling theory accurately describes beta-relaxation dynamics.

Recent corrections to asymptotic scaling laws improve theoretical predictions.

The study confirms the applicability of the theory to simple liquids.

Abstract

We present a detailed analysis of the beta-relaxation dynamics of a simple glass former, a Lennard-Jones system with a stochastic dynamics. By testing the various predictions of mode-coupling theory, including the recently proposed corrections to the asymptotic scaling laws, we come to the conclusion that in this time regime the dynamics is described very well by this theory.