title: Liquid-gas phase separation in confined vibrated dry granular matter.
abstract: 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.
authors.affiliation: Max Planck Institute for Dynamics and Selforganization, Am Faßberg 17, 37077 Göttingen, Germany.
authors.forename: Klaus
authors.initials: K
authors.lastname: Roeller
authors.forename: James P D
authors.initials: JP
authors.lastname: Clewett
authors.forename: R M
authors.initials: RM
authors.lastname: Bowley
authors.forename: Stephan
authors.initials: S
authors.lastname: Herminghaus
authors.forename: Michael R
authors.initials: MR
authors.lastname: Swift