The building blocks of dynamical heterogeneities in dense granular media

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dc.creatorCandelier, R.
dc.creatorDauchot, O.
dc.creatorBiroli, G.
dc.date2008-11-03
dc.date2009-01-22
dc.date.accessioned2026-07-07T12:55:16Z
dc.date.available2026-07-07T12:55:16Z
dc.descriptionWe investigate experimentally the connection between short time dynamics and long time dynamical heterogeneities within a dense granular media under cyclic shear. We show that dynamical heterogeneities result from a two timescales process. Short time but already collective events consisting in clustered cage jumps concentrate most of the non affine displacements. On larger timescales such clusters appear aggregated both temporally and spatially in avalanches which eventually build the large scales dynamical heterogeneities. Our results indicate that facilitation plays an important role in the relaxation process although it does not appear to be conserved as proposed in many models studied in the literature.
dc.description4 pages, 4 figures
dc.identifierhttps://arxiv.org/abs/0811.0201
dc.identifierhttp://arxiv.org/abs/0811.0201
dc.identifierPhys. Rev. Lett. (102) 088001 (2009)
dc.identifierdoi:10.1103/PhysRevLett.102.088001
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/224201
dc.subjectSoft Condensed Matter
dc.titleThe building blocks of dynamical heterogeneities in dense granular media
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