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

, , and

Published 24 October 2011 • Europhysics Letters Association
, , Citation M. Schmiedeberg et al 2011 EPL 96 36010 DOI 10.1209/0295-5075/96/36010

Download Article PDF

Article metrics

712 Total downloads

Share this article

Author affiliations

1 Institut für Theoretische Physik 2: Weiche Materie, Heinrich-Heine-Universität Düsseldorf 40225 Düsseldorf, Germany, EU

2 Department of Physics and Astronomy, University of Pennsylvania - Philadelphia, PA 19104, USA

3 The Molecular Foundry, Lawrence Berkeley National Laboratory - Berkeley, CA 94720, USA

4 The James Franck Institute, The University of Chicago - Chicago, IL 60637, USA

Dates

  1. Received 1 July 2011
  2. Accepted 20 September 2011
  3. Published
Journal RSS
Sign up for new issue notifications
0295-5075/96/3/36010

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.

Export citation and abstract BibTeX RIS

Previous article in issue
Next article in issue
10.1209/0295-5075/96/36010