Equivalence of glass transition and colloidal glass transition in the hard-sphere limit

Ning Xu; Thomas K. Haxton; Andrea J. Liu; Sidney R. Nagel

doi:10.1103/physrevlett.103.245701

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arXiv · 0910.0666

Equivalence of glass transition and colloidal glass transition in the hard-sphere limit

Ning Xu·Thomas K. Haxton·Andrea J. Liu·Sidney R. Nagel

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Abstract

We show that the slowing of the dynamics in simulations of several model glass-forming liquids is equivalent to the hard-sphere glass transition in the low-pressure limit. In this limit, we find universal behavior of the relaxation time by collapsing molecular-dynamics data for all systems studied onto a single curve as a function of $T/p$, the ratio of the temperature to the pressure. At higher pressures, there are deviations from this universal behavior that depend on the inter-particle potential, implying that additional physical processes must enter into the dynamics of glass-formation.

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Ning Xu, Thomas K. Haxton, Andrea J. Liu, Sidney R. Nagel. 2009-10-05. Equivalence of glass transition and colloidal glass transition in the hard-sphere limit. https://doi.org/10.1103/physrevlett.103.245701

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