title: Depletion forces in nonequilibrium.
abstract: The concept of effective depletion forces between two fixed big colloidal particles in a bath of small particles is generalized to a nonequilibrium situation where the bath of small Brownian particles is flowing around the big particles with a prescribed velocity. In striking contrast to the equilibrium case, the nonequilibrium forces violate Newton's third law; they are nonconservative and strongly anisotropic, featuring both strong attractive and repulsive domains.
authors.affiliation: University Chemical Laboratory, Lensfield Road, Cambridge CB2 1EW, United Kingdom.
authors.forename: J
authors.initials: J
authors.lastname: Dzubiella
authors.forename: H
authors.initials: H
authors.lastname: Löwen
authors.forename: C N
authors.initials: CN
authors.lastname: Likos