Glassiness in a model without energy barriers

Details Glassiness in a model without energy barriers Glassiness in a model without energy barriers

1995-04-20

arxiv.org/abs/cond-mat/9504081v2

Physics

Condensed Matter

11 Pages + 3 Figures, Revtex, uufiles have been replaced since figure 2 was corrupted in the previous submission

Scientific paper

10.1103/PhysRevLett.75.1190

We propose a microscopic model without energy barriers in order to explain some generic features observed in structural glasses. The statics can be exactly solved while the dynamics has been clarified using Monte Carlo calculations. Although the model has no thermodynamic transition it captures some of the essential features of real glasses, i.e., extremely slow relaxation, time dependent hysteresis effects, anomalous increase of the relaxation time and aging. This suggests that the effect of entropy barriers can be an important ingredient to account for the behavior observed in real glasses.

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