Time scales for transitions between free-energy minima of a dense hard-sphere system

Dasgupta, Chandan and Valls, Oriol T (1996) Time scales for transitions between free-energy minima of a dense hard-sphere system. In: Physical Review E - Statistical Physics, Plasmas, Fluids, and Related Interdisciplinary Topics, 53 (3). 2603-2612 .

PDF Time_scales_for_transition.pdf - Published Version Restricted to Registered users only Download (2MB) | Request a copy

Abstract

Time scales associated with activated transitions between glassy metastable states of a free-energy functional appropriate for a dense hard-sphere system are calculated by using a new Monte Carlo method for the local density variables. In particular, we calculate the time the system, initially placed in a shallow glassy minimum of the free-energy, spends in the neighborhood of this minimum before making a transition to the basin of attraction of another free-energy minimum. This time scale is found to increase as the average density is increased. We find a crossover density near which this time scale increases very sharply and becomes longer than the longest times accessible in our simulation. This time scale does not show any evidence of increasing with sample size

Item Type:	Journal Article
Publication:	Physical Review E - Statistical Physics, Plasmas, Fluids, and Related Interdisciplinary Topics
Publisher:	The American Physical Society
Additional Information:	Copyright of this article belongs to The American Physical Society.
Department/Centre:	Division of Physical & Mathematical Sciences > Physics
Date Deposited:	13 May 2011 07:08
Last Modified:	13 May 2011 07:08
URI:	http://eprints.iisc.ac.in/id/eprint/37645

Actions (login required)

View Item