Connection between Adam-Gibbs Theory and Spatially Heterogeneous Dynamics

by: Nicolas Giovambattista, Sergey V Buldyrev, Francis W Starr, Eugene H Stanley

Physical Review Letters, Vol. 90, No. 8. (28 February 2003), 085506.

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Abstract

We investigate the spatially heterogeneous dynamics in the extended simple point charge model of water 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. We also examine the time and temperature dependence of these transient clusters.

@article{citeulike:2453233, abstract = {We investigate the spatially heterogeneous dynamics in the extended simple point charge model of water 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. We also examine the time and temperature dependence of these transient clusters.}, author = {Giovambattista, Nicolas and Buldyrev, Sergey V. and Starr, Francis W. and Stanley, Eugene H. }, citeulike-article-id = {2453233}, doi = {10.1103/PhysRevLett.90.085506}, journal = {Physical Review Letters}, keywords = {gibbs, heterogeneity, theory}, month = {February}, number = {8}, pages = {085506+}, posted-at = {2008-03-01 18:20:31}, priority = {2}, publisher = {American Physical Society}, title = {Connection between Adam-Gibbs Theory and Spatially Heterogeneous Dynamics}, url = {http://dx.doi.org/10.1103/PhysRevLett.90.085506}, volume = {90}, year = {2003} }

RIS record

TY - JOUR ID - citeulike:2453233 L3 - citeulike-article-id:2453233 TI - Connection between Adam-Gibbs Theory and Spatially Heterogeneous Dynamics JF - Physical Review Letters VL - 90 IS - 8 SP - 085506 PB - American Physical Society N2 - We investigate the spatially heterogeneous dynamics in the extended simple point charge model of water 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. We also examine the time and temperature dependence of these transient clusters. KW - gibbs KW - heterogeneity KW - theory AU - Giovambattista, Nicolas AU - Buldyrev, Sergey AU - Starr, Francis AU - Stanley, Eugene PY - 2003/02/28/ UR - http://dx.doi.org/10.1103/PhysRevLett.90.085506 ER -

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