Connection between Adam-Gibbs Theory and Spatially Heterogeneous Dynamics

Abstract

We investigate the spatially heterogeneous dynamics in the SPC/E model of water by using molecular dynamics simulations. We relate the average mass $n^{\ast }$ of mobile particle clusters to the diffusion constant and the configurational entropy. Hence, $n^{\ast }$ can be interpreted as the mass of the ``cooperatively rearranging regions'' that form the basis of the Adam-Gibbs theory of the dynamics of supercooled liquids. Finally, we examine the time and temperature dependence of these transient clusters.

13 pages, 4 figs

References in corpus (3)

• Cooperative Origin of Low-Density Domains in Liquid Water
• Dynamics and Configurational Entropy in the LW Model for Supercooled Orthoterphenyl
• Transitions between Inherent Structures in Water

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