Signatures of glass formation in a fluidized bed of hard spheres

Details Signatures of glass formation in a fluidized bed of hard spheres Signatures of glass formation in a fluidized bed of hard spheres

2005-11-14

arxiv.org/abs/cond-mat/0511322v2

Physics

Condensed Matter

Statistical Mechanics

4 pages, 4 figures, submitted to PRL Replacement: modified figures and text

Scientific paper

10.1103/PhysRevLett.96.145702

We demonstrate that a fluidized bed of hard spheres during defluidization displays properties associated with formation of a glass. The final state is rate dependent, and as this state is approached, the bed exhibits heterogeneity with increasing time and length scales. The formation of a glass results in the loss of fluidization and an arrest of macroscopic particle motion. Microscopic motion persists in this state, but the bed can be jammed by application of a small increase in flow rate. Thus a fluidized bed can serve as a test system for studies of glass formation and jamming.

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