Published May 23, 2007 | Version v1
Journal article

Ten themes of viscous liquid dynamics

Creators

  • 1. DNRF Centre 'Glass and Time', IMFUFA Building 27, Department of Sciences, Roskilde University, Postbox 260, DK-4000 Roskilde (Denmark)

Description

Ten 'themes' of viscous liquid physics are discussed with a focus on how they point to a general description of equilibrium viscous liquid dynamics (i.e., fluctuations) at a given temperature. This description is based on standard time-dependent Ginzburg-Landau equations for the density fields, stress tensor fields, potential energy density field, and fields quantifying molecular orientations. One characteristic aspect of the theory is that density has the appearance of a non-conserved field. Another characteristic feature is the long-wavelength dominance of the dynamics, which not only simplifies the theory by allowing for an ultra-local Hamiltonian (free energy), but also explains the observed general independence of chemistry. Whereas there are no long-ranged static (i.e., equal-time) correlations in the model, there are important long-ranged dynamic correlations on the alpha timescale

Additional details

Identifiers

DOI
10.1088/0953-8984/19/20/205105;
PII
S0953-8984(07)33852-6;

Publishing Information

Journal Title
Journal of Physics. Condensed Matter
Journal Volume
19
Journal Issue
20
Journal Page Range
p. 205105
ISSN
0953-8984
CODEN
JCOMEL