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Q: Fachverband Quantenoptik und Photonik

Q 56: Poster IV

Q 56.6: Poster

Donnerstag, 5. März 2009, 16:30–19:00, VMP 9 Poster

Non-adiabatic effects for a shaken bosonic Josephson junction — •Stephan Arlinghaus, Bettina Gertjerenken, Christoph Weiss, and Martin Holthaus — Institut für Physik, Carl von Ossietzky Universität Oldenburg, 26111 Oldenburg

We investigate a shaken Bose-Einstein condensate in a double-well potential and juxtapose the many-body and the mean-field (Gross-Pitaevskii) dynamics. Time-dependent potential differences with a gaussian envelope lead to interesting effects such as breakdown of adiabaticity which is shown to be related to the emergence of chaos in the classical counterpart. Our numerical studies focus on the influence of frequency and amplitude of the shaking.