Dense suspensions and supercooled liquids: dynamic similarities.

Dense suspensions and supercooled, glass-forming, fragile Lennard-Jones liquids near T(g) should display similar relaxational and rheological behavior based on dynamical heterogeneities (actually, clusters of correlated, mobile particles embedded among the ordinary, bulk particles). Near structural arrest, we expect the shear-thinning onset to vanish as the inverse bulk-beta relaxation time. Connection to mechanical properties of granular media near random loose packing is briefly considered.