Equivalence of Glass Transition and Colloidal Glass Transition in the Hard-Sphere Limit

Condensed Matter journal club

Equivalence of Glass Transition and Colloidal Glass Transition in the Hard-Sphere Limit

  • Event time: 11:30am
  • Event date: 22nd January 2010
  • Speaker: (School of Physics & Astronomy, University of Edinburgh)
  • Location: Room 2511,

Event details

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 interparticle potential, implying that additional physical processes must enter into the dynamics of glass formation.
Phys. Rev. Lett 103 245701 (2009)

Authors

N. Xu, T.K. Haxton, A.J. Liu, and S.R. Nagel

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Given the diversity of research in the CM group, chosen topics vary widely. We tend to stick to high-impact journals - Nature, Science, PNAS and PRL have been popular - but this is not prescriptive..

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