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Off-Equilibrium Effective Temperature in Monatomic Lennard-Jones Glass

R. Di Leonardo·L. Angelani·G. Parisi·G. Ruocco
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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.

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R. Di Leonardo, L. Angelani, G. Parisi, G. Ruocco. 2000-01-21. Off-Equilibrium Effective Temperature in Monatomic Lennard-Jones Glass. https://doi.org/10.1103/physrevlett.84.6054

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