Connection between Adam-Gibbs Theory and Spatially Heterogeneous Dynamics

Details Connection between Adam-Gibbs Theory and Spatially Heterogeneous Dynamics Connection between Adam-Gibbs Theory and Spatially Heterogeneous Dynamics

2002-09-17

arxiv.org/abs/cond-mat/0209395v1

Physics

Condensed Matter

Soft Condensed Matter

13 pages, 4 figs

Scientific paper

10.1103/PhysRevLett.90.085506

We investigate the spatially heterogeneous dynamics in the SPC/E model of water by using molecular dynamics simulations. We relate the average mass $n^*$ of mobile particle clusters to the diffusion constant and the configurational entropy. Hence, $n^*$ 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.

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