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Hamburg 2009 – wissenschaftliches Programm

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Q: Fachverband Quantenoptik und Photonik

Q 17: Quantengase: Bosonen Dynamik / Disorder

Q 17.3: Vortrag

Dienstag, 3. März 2009, 11:00–11:15, VMP 6 HS-A

Dynamics of Solitons in Bose-Einstein condensates — •Eva-Maria Richter1, Christoph Becker1, Parvis Soltan-Panahi1, Mathis Baumert2, Sören Dörscher1, Simon Stellmer3, Jochen Kronjäger2, Kai Bongs2, and Klaus Sengstock11Institut für Laser-Physik, Universität Hamburg, Luruper Chaussee 149, 22761 Hamburg, Germany — 2MUARC, School of Physics and Astronomy, University of Birmingham, Edgbaston, Birmingham B15 2TT, United Kingdom — 3Institut für Quantenoptik und Quanteninformation Technikerstr. 21a A-6020 Innsbruck Austria, Europe

We present the results of numerical calculations solving the 1D Gross-Pitaevskii equation and discuss the dynamics of dark and dark-bright solitons in Bose-Einstein condensates, particularly with regard to their collisions [1,2]. By tracing phase and densitydistribution of the condensate during the interaction, several types of collisions, depending on the depths of the solitons, can be distinguished. We compared these simulations with our results of the experimental observations of dark and dark-bright solitons in Bose-Einstein condensates. [1] C. Becker et. al., Nature Physics 4, 496-501 (2008); [2] S. Stellmer et. al., Phys. Rev. Lett. 101, 120406 (2008)

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