Signatures of glass formation in a fluidized bed of hard spheres
arXiv:cond-mat/0511322 · doi:10.1103/PhysRevLett.96.145702
Abstract
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.
4 pages, 4 figures, submitted to PRL Replacement: modified figures and text
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