title: Nonequilibrium Phase Behavior from Minimization of Free Power Dissipation.
abstract: We develop a general theory for describing phase coexistence between nonequilibrium steady states in Brownian systems, based on power functional theory [M. Schmidt and J. M. Brader, J. Chem. Phys. 138, 214101 (2013)]. We apply the framework to the special case of fluid-fluid phase separation of active soft sphere swimmers. The central object of the theory, the dissipated free power, is calculated via computer simulations and compared to a simple analytical approximation. The theory describes well the simulation data and predicts motility-induced phase separation due to avoidance of dissipative clusters.
authors.affiliation: Theoretische Physik II, Physikalisches Institut, Universität Bayreuth, D-95440 Bayreuth, Germany.
authors.forename: Philip
authors.initials: P
authors.lastname: Krinninger
authors.affiliation: Theoretische Physik II, Physikalisches Institut, Universität Bayreuth, D-95440 Bayreuth, Germany.
authors.forename: Matthias
authors.initials: M
authors.lastname: Schmidt
authors.affiliation: Soft Matter Theory, University of Fribourg, CH-1700 Fribourg, Switzerland.
authors.forename: Joseph M
authors.initials: JM
authors.lastname: Brader