title: Directed percolation with long-range interactions: Modeling nonequilibrium wetting.
abstract: It is argued that some phase transitions observed in models of nonequilibrium wetting phenomena are related to contact processes with long-range interactions. This is investigated by introducing a model where the activation rate of a site at the edge of an inactive island of length l is 1+a l(-sigma) . Mean-field analysis and numerical simulations indicate that for sigma>1 the transition is continuous and belongs to the universality class of directed percolation, while for 0<sigma<1 , the transition becomes first order. This criterion is then applied to discuss critical properties of various models of nonequilibrium wetting.
authors.affiliation: Institut für Theoretische Physik und Astrophysik, University of Würzburg, D-97974 Würzburg, Germany.
authors.forename: F
authors.initials: F
authors.lastname: Ginelli
authors.forename: H
authors.initials: H
authors.lastname: Hinrichsen
authors.forename: R
authors.initials: R
authors.lastname: Livi
authors.forename: D
authors.initials: D
authors.lastname: Mukamel
authors.forename: A
authors.initials: A
authors.lastname: Politi