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DY 48.4: Vortrag
Donnerstag, 19. März 2020, 10:15–10:30, ZEU 147
Domain wall fluctuations between extremal current phases of driven lattice gases — •Marco Bosi, David Locher, and Philipp Maass — Fachbereich Physik, Osnabrück Universität, Germany
Driven lattice gases are systems where fundamental aspects of non-equilibrium physics can be conveniently studied. In addition they have many applications in biology and other fields. In bulk-driven open system coupled to particle reservoir, phase transitions occur, where, the bulk density in stationary states exhibits a singular behaviour upon varying the parameters of the system-reservoir couplings (analogous to first and second transitions known in equilibrium).Self-organized phases can appear with bulk densities equal to values where the bulk current is minimal or maximal.
In the presence of repulsive nearest-neighbour interactions degenerate maxima in the bulk current-density relation emerge, which allow for coexisting maximal current phases. We report on the behaviour of the fluctuations of the domain walls separating those coexisting phases.
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