Activated aging dynamics and negative fluctuation-dissipation ratios

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dc.creatorMayer, Peter
dc.creatorLéonard, Sébastien
dc.creatorBerthier, Ludovic
dc.creatorGarrahan, Juan P.
dc.creatorSollich, Peter
dc.date2005-08-29
dc.date2006-02-06
dc.date.accessioned2026-07-07T06:41:39Z
dc.date.available2026-07-07T06:41:39Z
dc.descriptionIn glassy materials aging proceeds at large times via thermal activation. We show that this can lead to negative dynamical response functions and novel and well-defined violations of the fluctuation-dissipation theorem, in particular, negative fluctuation-dissipation ratios. Our analysis is based on detailed theoretical and numerical results for the activated aging regime of simple kinetically constrained models. The results are relevant to a variety of physical situations such as aging in glass-formers, thermally activated domain growth and granular compaction.
dc.description4 pages, 4 figs; v2 final version (minor modifs) published in Phys. Rev. Lett
dc.identifierhttps://arxiv.org/abs/cond-mat/0508686
dc.identifierhttp://arxiv.org/abs/cond-mat/0508686
dc.identifierPhys. Rev. Lett. 96, 030602 (2006)
dc.identifierdoi:10.1103/PhysRevLett.96.030602
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/101746
dc.subjectStatistical Mechanics
dc.titleActivated aging dynamics and negative fluctuation-dissipation ratios
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