Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
974862 | Physica A: Statistical Mechanics and its Applications | 2015 | 8 Pages |
•The dynamics of quasi-2D polydisperse granular particles is characterized.•Evidence is found that aging in glass-like systems is dominated by avalanches.•Relaxation resembles that of some 3D colloidal monodisperse hard sphere glasses.•Avalanches may play a role in the dynamics of a wide variety glassy systems.
The dynamics of an experimental driven quasi-2D system of polydisperse particles in a cluster formed by granular collapse is characterized via the self-intermediate scattering function and the mean-squared displacement and is compared with monodisperse experimental and computational systems. The dynamics, despite the difference in dimensionality, is shown to resemble that of de-vitrification in certain simulations of 3D colloidal monodisperse hard sphere glasses in that avalanches are a key feature.