Hannover 2010 – scientific programme

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Q: Fachverband Quantenoptik und Photonik

Q 31: Quantum Gases: Interaction Effects II

Q 31.1: Talk

Wednesday, March 10, 2010, 14:00–14:15, E 001

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

Cold quantum gases with electromagnetically induced attractive 1/r interaction have been proposed by O’Dell et. al. as systems in which, in addition to the short-range contact interaction a long-range interaction between the atoms is present. We study rotating Bose-Einstein condensates with 1/r interaction in the frame of the Gross-Pitaevskii theory by variational calculations, and by imaginary time evolution on a two-dimensional grid. We analyse the stability of the localised vortices by solving the Bogoliubov-de Gennes equations of the system numerically.