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  Slow dynamics and precursors of the glass transition in granular fluids

Gholami, I., Fiege, A., & Zippelius, A. (2011). Slow dynamics and precursors of the glass transition in granular fluids. Physical Review E, 84: 031305, pp. 031305-1-031305-9.

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 Creators:
Gholami, Irash, Author
Fiege, Andrea, Author
Zippelius, Annette1, Author           
Affiliations:
1Fellow Group Polymers, complex fluids and disordered systems, Max Planck Institute for Dynamics and Self-Organization, Max Planck Society, ou_2063298              

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 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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Language(s): eng - English
 Dates: 2011-09-21
 Publication Status: Issued
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 Identifiers: eDoc: 633332
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Title: Physical Review E
  Alternative Title : Phys. Rev. E
Source Genre: Journal
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Pages: - Volume / Issue: 84 Sequence Number: 031305 Start / End Page: 031305-1 - 031305-9 Identifier: ISSN: 1539-3755