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The rejuvenation effect in the two-state random energy model

Mitsuhiro Kawasaki
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Abstract

Theoretical analyses of the random energy model with only two states and its extension with a hierarchy of only two levels show that these models reproduce out-of-equilibrium phenomena observed in experiments of glassy materials; the rejuvenation effect (the chaos effect), i.e. the abrupt jump and subsequent relaxation of the out-of-phase susceptibility as if the system rejuvenates when the temperature is lowered, and the power-law relaxation of the two-time correlation function. Our results suggest that also in an assembly of small systems with relaxation times distributed broadly some of these interesting out-of-equilibrium phenomena can be observed.

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Mitsuhiro Kawasaki. 2000-12-25. The rejuvenation effect in the two-state random energy model. https://doi.org/10.1143/jpsj.70.1762

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