Publication : t14/217

Critical dynamical heterogeneities close to continuous second-order glass transitions

Nandi S. (CEA, IPhT (Institut de Physique Théorique), F-91191 Gif-sur-Yvette, France)
Biroli G. (CEA, IPhT (Institut de Physique Théorique), F-91191 Gif-sur-Yvette, France)
Bouchaud J.P. ()
Miyazaki K. (Department of Chemistry, Columbia University 3000 Broadway, New York, NY 10027, USA)
Reichman R. ()
Abstract:
We analyse, using Inhomogenous Mode-Coupling Theory, the critical scaling behaviour of the dynamical susceptibility at a distance epsilon from continuous second-order glass transitions. We find that the dynamical correlation length xi behaves generically as epsilon^{-1/3} and that the upper critical dimension is equal to six. More surprisingly, we find activated dynamic scaling, where xi grows with time as [ln(t)]^2 exactly at criticality. All these results suggest a deep analogy between the glassy behaviour of attractive colloids or randomly pinned supercooled liquids and that of the Random Field Ising Model.
Année de publication : 2014
Revue : Phys. Rev. Lett. 113 245701 (2014)
Preprint : arXiv:1401.3253
Langue : Anglais

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