Finite size effects in the specific heat of glass-formers

TL;DR

This paper demonstrates finite size effects in the specific heat and relaxation times of a glass-former at low temperatures, using a new Monte Carlo algorithm that reveals large static correlation lengths.

Contribution

Introduction of a novel Monte Carlo algorithm enabling the study of finite size effects in glass-formers at low temperatures.

Findings

Finite size effects observed in specific heat and relaxation times.

Large static correlation lengths inferred from the effects.

Algorithm reduces relaxation times by two orders of magnitude.

Abstract

We report clear finite size effects in the specific heat and in the relaxation times of a model glass former at temperatures considerably smaller than the Mode Coupling transition. A crucial ingredient to reach this result is a new Monte Carlo algorithm which allows us to reduce the relaxation time by two order of magnitudes. These effects signal the existence of a large correlation length in static quantities.