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29 March 2024
 
  » arxiv » 1508.2644

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Crossover from $eta$- to $alpha$-relaxation in cooperative facilitation dynamics
Mauro Sellitto ;
Date 11 Aug 2015
Abstract$eta$ and $alpha$ relaxation processes are dynamical scaling regimes of glassy systems occurring on two separate time scales which both diverge as the glass state is approached. We study here the crossover scaling from $eta$- to $alpha$- relaxation in the cooperative facilitation scenario (CFS) and show that it is quantitatively described, with no adjustable parameter, by the leading order asymptotic corrections to scaling predicted by the mode-coupling theory (MCT). These results establish: (i) the mutual universality of the MCT and CFS, and (ii) the existence of a purely dynamic realization of MCT which is distinct from the well established random-first order transition scenario for disordered systems. Some implications of the emerging kinetic-static duality are discussed.
Source arXiv, 1508.2644
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