Predicting The Effective Temperaure of a Glass

Details Predicting The Effective Temperaure of a Glass Predicting The Effective Temperaure of a Glass

2009-12-06

arxiv.org/abs/0912.1120v3

Physical Review Letters 104, 125902 (2010)

Physics

Condensed Matter

Statistical Mechanics

5 pages, 6 figures

Scientific paper

We explain the findings by Di Leonardo et al. [Phys. Rev. Lett. 84, 6054 (2000)] that the effective temperature of a Lennard-Jones glass depends only on the final value of the density in the volume and/or temperature jump that produces the glass phase. This is not only a property of the Lennard-Jones liquid, but a feature of all strongly correlating liquids. For such liquids data from a single quench simulation provides enough information to predict the effective temperature of any glass produced by jumping from an equilibrium state. This prediction is validated by simulations of the Kob-Andersen binary Lennard-Jones liquid and shown not to apply for the non-strongly correlating monatomic Lennard-Jones Gaussian liquid.

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