Stuttgart 2012 – wissenschaftliches Programm

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Q: Fachverband Quantenoptik und Photonik

Q 34: Poster 1

Q 34.27: Poster

Dienstag, 13. März 2012, 16:30–19:00, Poster.I+II

Beyond mean-field dynamics in open Bose-Hubbard chains — •Anton Ivanov, Georgios Kordas, and Sandro Wimberger — Institut für theoretische Physik und HGSFP, Universität Heidelberg

We analyze the dissipative dynamics of bosonic quantum gases beyond the mean-field approximation. Our system consists of a one dimensional Bose-Hubbard chain coupled to a bosonic reservoir and we allow the exchange of energy and particles with the reservoir. For this system we derive a Master equation in Lindblad form which can be solved exactly in some limiting cases. Numerical solutions are provided including interparticle correlations beyond mean-field. With this machinary we investigate the non-equilibrium transport of particles across the chain dependending on interactions and reservoir parameters.