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Gholami I, Fiege A, Zippelius A. Slow dynamics and precursors of the glass transition in granular fluids. Phys Rev E Stat Nonlin Soft Matter Phys. 2011;84(3):031305doi: 10.1103/PhysRevE.84.031305.
Gholami, I., Fiege, A., & Zippelius, A. (2011). Slow dynamics and precursors of the glass transition in granular fluids. Physical review. E, Statistical, nonlinear, and soft matter physics, 84(3), 031305. https://doi.org/10.1103/PhysRevE.84.031305
Gholami, Iraj, et al. "Slow dynamics and precursors of the glass transition in granular fluids." Physical review. E, Statistical, nonlinear, and soft matter physics vol. 84,3 (2011): 031305. doi: https://doi.org/10.1103/PhysRevE.84.031305
Gholami I, Fiege A, Zippelius A. Slow dynamics and precursors of the glass transition in granular fluids. Phys Rev E Stat Nonlin Soft Matter Phys. 2011 Sep;84(3):031305. doi: 10.1103/PhysRevE.84.031305. Epub 2011 Sep 21. PMID: 22060359.
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Phys Rev E Stat Nonlin Soft Matter Phys. 2011 Sep;84(3):031305. doi: 10.1103/PhysRevE.84.031305. Epub 2011 Sep 21.

Slow dynamics and precursors of the glass transition in granular fluids.

Physical review. E, Statistical, nonlinear, and soft matter physics

Iraj Gholami, Andrea Fiege, Annette Zippelius

Affiliations

  1. Institut für Theoretische Physik, Georg-August-Universität Göttingen, Friedrich-Hund-Platz 1, D-37077 Göttingen, Germany. [email protected]

PMID: 22060359 DOI: 10.1103/PhysRevE.84.031305

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.

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