title: Emergent motion of condensates in mass-transport models.
abstract: We examine the effect of spatial correlations on the phenomenon of real-space condensation in driven mass-transport systems. We suggest that in a broad class of models with a spatially correlated steady state, the condensate drifts with a nonvanishing velocity. We present a robust mechanism leading to this condensate drift. This is done within the framework of a generalized zero-range process (ZRP) in which, unlike the usual ZRP, the steady state is not a product measure. The validity of the mechanism in other mass-transport models is discussed.
authors.affiliation: Department of Physics of Complex Systems, Weizmann Institute of Science, 76100 Rehovot, Israel.
authors.forename: Ori
authors.initials: O
authors.lastname: Hirschberg
authors.forename: David
authors.initials: D
authors.lastname: Mukamel
authors.forename: Gunter M
authors.initials: GM
authors.lastname: Schütz
mesh_terms: D003198:Computer Simulation; D005740:Gases / Q000737:chemistry*; D008956:Models, Chemical; D008958:Models, Molecular; D012212:Rheology / Q000379:methods*; D012996:Solutions / Q000737:chemistry*
chemical_list: D005740:Gases; D012996:Solutions