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Q: Fachverband Quantenoptik und Photonik

Q 41: Quantengase: Dipolare Gase

Q 41.4: Vortrag

Donnerstag, 5. März 2009, 11:15–11:30, Audi-A

Bose-Einstein condensates with induced 1/r interactions and embedded vorticity — •Poulcheria Christou, Patrick Köberle, Axel Keller, Jörg Main, and Günter Wunner — 1. Institut für Theoretische Physik, Universität Stuttgart, 70550 Stuttgart

Rotating Bose-Einstein condensates with contact interactions and electromagnetically induced attractive 1/r atomic interactions are studied. As a special feature the 1/r interactions allow for the case of self-trapping. Variational calculations are carried out both for self-trapping and for the case of an external trapping potential within the limits of Gross-Pitaevskii theory. In addition the Bogoliubov equations of the system are solved numerically to analyse the stability of the localised vortices.