title: Slow dynamics and precursors of the glass transition in granular fluids.
abstract: We use event driven simulations to analyze glassy dynamics as a function of density and energy dissipation in a two-dimensional bidisperse granular fluid under stationary conditions. Clear signatures of a glass transition are identified, such as an increase of relaxation times over several orders of magnitude. As the inelasticity is increased, the glass transition is shifted to higher densities, and the precursors of the transition become less and less pronounced, in agreement with a recent mode-coupling theory. We analyze the long-time tails of the velocity autocorrelation and discuss its consequences for the nonexistence of the diffusion constant in two dimensions.
authors: Institut für Theoretische Physik, Georg-August-Universität Göttingen, Friedrich-Hund-Platz 1, D-37077 Göttingen, Germany. iraj.gholami@theorie.physik.uni-goettingen.de
authors: Iraj
authors: I
authors: Gholami
authors: Andrea
authors: A
authors: Fiege
authors: Annette
authors: A
authors: Zippelius