title: Connection between Adam-Gibbs theory and spatially heterogeneous dynamics.
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.
authors.affiliation: Center for Polymer Studies and Department of Physics, Boston University, Boston, Massachusetts 02215, USA.
authors.forename: Nicolas
authors.initials: N
authors.lastname: Giovambattista
authors.forename: Sergey V
authors.initials: SV
authors.lastname: Buldyrev
authors.forename: Francis W
authors.initials: FW
authors.lastname: Starr
authors.forename: H Eugene
authors.initials: HE
authors.lastname: Stanley