Glass transition in the quenched and annealed version of the frustrated lattice gas model

Details Glass transition in the quenched and annealed version of the frustrated lattice gas model Glass transition in the quenched and annealed version of the frustrated lattice gas model

2000-09-12

arxiv.org/abs/cond-mat/0009173v2

Phys. Rev. E 62, 7715 (2000)

Physics

Condensed Matter

Disordered Systems and Neural Networks

8 pages, 14 figures

Scientific paper

10.1103/PhysRevE.62.7715

In this paper we study the 3d frustrated lattice gas model in the annealed version, where the disorder is allowed to evolve in time with a suitable kinetic constraint. Although the model does not exhibit any thermodynamic transition it shows a diverging peak at some characteristic time in the dynamical non-linear susceptibility, similar to the results on the p-spin model in mean field and Lennard-Jones mixture recently found by Donati et al. [cond-mat/9905433]. Comparing these results to those obtained in the model with quenched interactions, we conclude that the critical behavior of the dynamical susceptibility is reminiscent of the thermodynamic transition present in the quenched model, and signaled by the divergence of the static non-linear susceptibility, suggesting therefore a similar mechanism also in supercooled glass-forming liquids.

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