Liquid-gas phase separation in confined vibrated dry granular matter

A new phase transition is observed experimentally in a dry granular gas subject to vertical vibration between two horizontal plates. Molecular dynamics simulations of this system allow us to investigate the observed phase separation in detail. We find a high-density, low temperature liquid, coexisti...

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Bibliographic Details
Published in:Physical review letters 2011-07, Vol.107 (4), p.048002-048002, Article 048002
Main Authors: Roeller, Klaus, Clewett, James P D, Bowley, R M, Herminghaus, Stephan, Swift, Michael R
Format: Article
Language:English
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Summary:A new phase transition is observed experimentally in a dry granular gas subject to vertical vibration between two horizontal plates. Molecular dynamics simulations of this system allow us to investigate the observed phase separation in detail. We find a high-density, low temperature liquid, coexisting with a low-density, high temperature gas moving coherently. The importance of the coherent motion for phase separation is investigated using frequency modulation.
ISSN:0031-9007
1079-7114
DOI:10.1103/physrevlett.107.048002