Metastable states and space-time phase transitions in a spin-glass model

Details Metastable states and space-time phase transitions in a spin-glass model Metastable states and space-time phase transitions in a spin-glass model

2009-10-06

arxiv.org/abs/0910.1111v1

Phys. Rev. E 81, 011111 (2010)

Physics

Condensed Matter

Statistical Mechanics

4.1 pages, 4 figs

Scientific paper

10.1103/PhysRevE.81.011111

We study large deviations of the dynamical activity in the random orthogonal model (ROM). This is a fully connected spin-glass model with one-step replica symmetry breaking behaviour, consistent with the random first-order transition scenario for structural glasses. We show that this model displays dynamical (space-time) phase-transitions between active and inactive phases, as demonstrated by singularities in large deviation functions. We argue that such transitions are generic in systems with long-lived metastable states.

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