Equilibrium and out of equilibrium thermodynamics in supercooled liquids and glasses

Details Equilibrium and out of equilibrium thermodynamics in supercooled liquids and glasses Equilibrium and out of equilibrium thermodynamics in supercooled liquids and glasses

2002-09-07

arxiv.org/abs/cond-mat/0209181v1

J. Phys. Condens. Matter 15, S351 (2003)

Physics

Condensed Matter

Soft Condensed Matter

7 pages, 4 eps figures

Scientific paper

10.1088/0953-8984/15/1/348

We review the inherent structure thermodynamical formalism and the formulation of an equation of state for liquids in equilibrium based on the (volume) derivatives of the statistical properties of the potential energy surface. We also show that, under the hypothesis that during aging the system explores states associated to equilibrium configurations, it is possible to generalize the proposed equation of state to out-of-equilibrium conditions. The proposed formulation is based on the introduction of one additional parameter which, in the chosen thermodynamic formalism, can be chosen as the local minima where the slowly relaxing out-of-equilibrium liquid is trapped.

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