A test of non-equilibrium thermodynamics in glassy systems: the soft-sphere case
Soft Condensed Matter
2009-11-10 v1 Statistical Mechanics
Abstract
The scaling properties of the soft-sphere potential allow the derivation of an exact expression for the pressure of a frozen liquid, i.e., the pressure corresponding to configurations which are local minima in its multidimensional potential energy landscape. The existence of such a relation offers the unique possibility for testing the recently proposed extension of the liquid free energy to glassy out-of-equilibrium conditions and the associated expression for the temperature of the configurational degrees of freedom. We demonstrate that the non-equilibrium free energy provides an exact description of the soft-sphere pressure in glass states.
Cite
@article{arxiv.cond-mat/0303040,
title = {A test of non-equilibrium thermodynamics in glassy systems: the soft-sphere case},
author = {E. La Nave and F. Sciortino and P. Tartaglia and M. S. Shell and P. G. Debenedetti},
journal= {arXiv preprint arXiv:cond-mat/0303040},
year = {2009}
}