Aging and energy landscapes: application to liquids and glasses |
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| Authors: | S Mossa E La Nave F Sciortino P Tartaglia |
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| Institution: | (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, Italy, IT;(2) Center for Polymer Studies and Department of Physics, Boston University, Boston, Massachusetts 02215, USA, US |
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| 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.
Received 7 August 2002 / Received in final form 8 October 2002
Published online 19 December 2002
RID="a"
ID="a"Present address: Laboratoire de Physique Théorique des Liquides, Université Pierre et Marie Curie, 4 place Jussieu, Paris 75005, France e-mail:
mossa@lptl.jussieu.fr |
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| Keywords: | 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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