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DY: Fachverband Dynamik und Statistische Physik

DY 22: Posters I

DY 22.42: Poster

Mittwoch, 28. März 2012, 17:00–19:00, Poster A

Driven transport in lattice gases with nearest-neighbor interactions and general couplings to particle reservoirs — •Marcel Dierl, Philipp Maass, and Mario Einax — Fachbereich Physik, Universität Osnabrück, Barbarastraße 7, 49076 Osnabrück, Germany

Nonequilibrium steady states of lattice gases with nearest-neighbor interactions are studied that are driven between two reservoirs. A generic feature of these systems is the emergence of density oscillations close to the system boundaries. These oscillations lead to phases of the bulk density which cannot be predicted by the minimum and maximum current principles. These principles are suited only for very special bulk-adapted couplings of the system to the reservoirs. It is shown that an approach based on time-dependent density functional theory can cope with the density oscillations and successfully predicts phase diagrams of bulk densities to a good approximation under arbitrary boundary-reservoir couplings.