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

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

2011-07-13

arxiv.org/abs/1107.2583v1

EPL 96, 36010 (2011)

Physics

Condensed Matter

Soft Condensed Matter

5 pages, 3 figures

Scientific paper

10.1209/0295-5075/96/36010

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.

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