Entropic origin of the growth of relaxation times in simple glassy liquids

Chandan Dasgupta, Oriol T. Valls

Research output: Contribution to journalArticlepeer-review

15 Scopus citations

Abstract

Transitions between “glassy” local minima of a model free-energy functional for a dense hard-sphere system are studied numerically using a “microcanonical” Monte Carlo method that enables us to obtain the transition probability as a function of the free energy and the Monte Carlo “time.” The growth of the height of the effective free-energy barrier with density is found to be consistent with a Vogel-Fulcher law. The dependence of the transition probability on time indicates that this growth is primarily due to an increase in the difficulty of finding low-free-energy paths to other minima.

Original languageEnglish (US)
Pages (from-to)801-804
Number of pages4
JournalPhysical Review E - Statistical Physics, Plasmas, Fluids, and Related Interdisciplinary Topics
Volume58
Issue number1
DOIs
StatePublished - 1998

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