Aging as dynamics in configuration space
Institute of Physics, Johannes-Gutenberg University -
D-55099 Mainz, Germany
2 Dipartimento di Fisica and Istituto Nazionale per la Fisica della Materia Università di Roma “La Sapienza” - P.le Aldo Moro 2, I-00185 Roma, Italy
Accepted: 21 December 1999
Using molecular dynamics computer simulation we calculate for a simple glass former eIS, the energy of the inherent structure, in equilibrium and in the out-of-equilibrium situation. We show that eIS can be used to define for the aging system an effective time-dependent temperature . In particular we demonstrate that during the aging process the system visits at time t configurations which are typical for the equilibrium system at temperature .
PACS: 61.20.Lc – Time-dependent properties; relaxation / 61.20.Ja – Computer simulation of liquid structure / 64.70.Pf – Glass transitions
© EDP Sciences, 2000