Off-Equilibrium Effective Temperature in Monatomic Lennard-Jones Glass
Disordered Systems and Neural Networks
2009-10-31 v1 Soft Condensed Matter
Abstract
The off-equilibrium dynamics of a monatomic Lennard-Jones glass is investigated after sudden isothermal density jumps (crunch) from well equilibrated liquid configurations towards the glassy state. The generalized fluctuation-dissipation relation has been studied and the temperature dependence of the violation factor m is found in agreement with the one step replica symmetry breaking scenario, i.e. at low temperature m(T) is found proportional to T up to an off-equilibrium effective temperature T_eff, where m(T_eff)=1. We report T_eff as a function of the density and compare it with the glass transition temperatures T_g as determined by equilibrium calculations.
Keywords
Cite
@article{arxiv.cond-mat/0001311,
title = {Off-Equilibrium Effective Temperature in Monatomic Lennard-Jones Glass},
author = {R. Di Leonardo and L. Angelani and G. Parisi and G. Ruocco},
journal= {arXiv preprint arXiv:cond-mat/0001311},
year = {2009}
}
Comments
4 pages,4 figures