%0 Journal Article %1 Candelier2010Dynamical %A Candelier, R. %A Dauchot, O. %A Biroli, G. %D 2010 %J EPL (Europhysics Letters) %K granular\_matter, kinetic\_models glasses %N 2 %P 24003+ %R 10.1209/0295-5075/92/24003 %T Dynamical facilitation decreases when approaching the granular glass transition %U http://dx.doi.org/10.1209/0295-5075/92/24003 %V 92 %X We investigate the relaxation dynamics of a dense monolayer of bidisperse beads by analyzing the experimental data previously obtained in a fluidized bed. We show that the dynamics is formed by elementary relaxation events called cage jumps. These aggregate on a very short time into clusters. Increasing the packing fraction makes the spatio-temporal organization of the clusters evolve from a rather scattered and random distribution towards a collection of sparse and large events, called avalanches. The avalanche process is a manifestation of dynamical facilitation. The study of its evolution with density reveals that dynamical facilitation becomes less conserved and play a lesser role for the structural relaxation approaching the granular glass transition.

@article{Candelier2010Dynamical, abstract = {{We investigate the relaxation dynamics of a dense monolayer of bidisperse beads by analyzing the experimental data previously obtained in a fluidized bed. We show that the dynamics is formed by elementary relaxation events called cage jumps. These aggregate on a very short time into clusters. Increasing the packing fraction makes the spatio-temporal organization of the clusters evolve from a rather scattered and random distribution towards a collection of sparse and large events, called avalanches. The avalanche process is a manifestation of dynamical facilitation. The study of its evolution with density reveals that dynamical facilitation becomes less conserved and play a lesser role for the structural relaxation approaching the granular glass transition.}}, added-at = {2019-06-10T14:53:09.000+0200}, archiveprefix = {arXiv}, author = {Candelier, R. and Dauchot, O. and Biroli, G.}, biburl = {https://www.bibsonomy.org/bibtex/2102e99dd6c31864ac0b6d8ca883e76df/nonancourt}, citeulike-article-id = {6296281}, citeulike-linkout-0 = {http://dx.doi.org/10.1209/0295-5075/92/24003}, citeulike-linkout-1 = {http://arxiv.org/abs/0912.0472}, citeulike-linkout-2 = {http://arxiv.org/pdf/0912.0472}, day = 1, doi = {10.1209/0295-5075/92/24003}, eprint = {0912.0472}, interhash = {5b25a0c327cd241633d3e6b1a070127d}, intrahash = {102e99dd6c31864ac0b6d8ca883e76df}, issn = {1286-4854}, journal = {EPL (Europhysics Letters)}, keywords = {granular\_matter, kinetic\_models glasses}, month = oct, number = 2, pages = {24003+}, posted-at = {2013-05-20 17:04:29}, priority = {2}, timestamp = {2019-07-31T12:31:28.000+0200}, title = {{Dynamical facilitation decreases when approaching the granular glass transition}}, url = {http://dx.doi.org/10.1209/0295-5075/92/24003}, volume = 92, year = 2010 }