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arXiv · 1107.2583

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

Michael Schmiedeberg·Thomas K. Haxton·Sidney R. Nagel·Andrea J. Liu
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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.

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Michael Schmiedeberg, Thomas K. Haxton, Sidney R. Nagel, Andrea J. Liu. 2011-07-13. Mapping the glassy dynamics of soft spheres onto hard-sphere behavior. https://doi.org/10.1209/0295-5075%2F96%2F36010

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