Aging and energy landscapes: application to liquids and glasses

  • S. Mossa
  • E. La Nave
  • F. Sciortino
  • P. Tartaglia

Abstract:

The equation of state for a liquid in equilibrium, written in the potential energy landscape formalism, is generalized to describe out-of-equilibrium conditions. The hypothesis that during aging the system explores basins associated to equilibrium configurations is the key ingredient in the derivation. Theoretical predictions are successfully compared with data from molecular dynamics simulations of different aging processes, such as temperature and pressure jumps.

PACS. 64.70.Pf Glass transitions – 61.20.Ja . Computer simulation of liquid structure – 61.20.Lc . Time-dependent properties; relaxation 

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Copyright information

© EDP Sciences, Springer-Verlag 2002

Authors and Affiliations

  • S. Mossa
    • 1
  • E. La Nave
    • 1
  • F. Sciortino
    • 1
  • P. Tartaglia
    • 1
  1. 1.Dipartimento di Fisica and INFM Udr and Center for Statistical Mechanics and Complexity, Universitá di Roma “La Sapienza”, Piazzale Aldo Moro 2, 00185, Roma, ItalyIT

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