Europhys. Lett, 47 (4), pp. 449-455 (1999)
Energy landscape and overlap distribution of binary Lennard-Jones glasses
K. K. Bhattacharya, K. Broderix, R. Kree and A. Zippelius
Institut für Theoretische Physik,
Bunsenstr. 9, D-37073 Göttingen, Germany
(received 10 March 1999; accepted 5 July 1999)
PACS. 61.43Fs - Glasses.
PACS. 64.70Pf - Glass transitions.
We study the distribution of overlaps of glassy minima, taking proper care of residual symmetries of the system. Ensembles of locally stable, low-lying glassy states are efficiently generated by rapid cooling from the liquid phase which has been equilibrated at a temperature . Varying , we observe a transition from a regime where a broad range of states are sampled to a regime where the system is almost always trapped in a metastable glassy state. We do not observe any structure in the distribution of overlaps of glassy minima, but find only very weak correlations, comparable in size to those of two liquid configurations.
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