Mapping the glassy dynamics of soft spheres onto hard-sphere behavior

Abstract

We show that the dynamics of soft-sphere systems with purely repulsive interactions can be described by introducing an effective hard-sphere diameter determined using the Andersen-Weeks-Chandler approximation. We find that this approximation, known to describe static properties of liquids, also gives a good description of a dynamical quantity, the relaxation time, even in the vicinity of the glass transition.

5 pages, 3 figures

References in corpus (8)

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