Single-parameter aging in a binary Lennard-Jones system.

  title={Single-parameter aging in a binary Lennard-Jones system.},
  author={Saeed Mehri and Trond S Ingebrigtsen and Jeppe C. Dyre},
  journal={The Journal of chemical physics},
  volume={154 9},
This paper studies physical aging by computer simulations of a 2:1 Kob-Andersen binary Lennard-Jones mixture, a system that is less prone to crystallization than the standard 4:1 composition. Starting from thermal-equilibrium states, the time evolution of the following four quantities is monitored by following up and down jumps in temperature: potential energy, virial, average squared force, and the Laplacian of the potential energy. Despite the fact that significantly larger temperature jumps… 

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