Stuttgart 2012 – wissenschaftliches Programm

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Q: Fachverband Quantenoptik und Photonik

Q 34: Poster 1

Q 34.12: Poster

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

Solitons in ultracold bose gases out of equilibrium — •Sebastian Erne1,2, Boris Nowak1,2, and Thomas Gasenzer1,21Institut für Theoretische Physik, Ruprecht-Karls-Universität Heidelberg, Philosophenweg 16, 69120 Heidelberg — 2ExtreMe Matter Institute EMMI, GSI Helmholtzzentrum für Schwerionenforschung GmbH, Planckstraße 1, 64291 Darmstadt, Germany

We investigate the dynamics of BECs out of equilibrium in one spatial dimension by statistical simulations using the classical field equations. Special focus is set on the time evolution of the soliton formation and the characterisation of the quasi-steady solitonic state by measurements of characteristic quantities such as the density-density correlation, the spectrum of the one particle momentum distribution and the interference of condensates during the solitonic state. In particular we investigate the collision of multiple BECs released from an optical lattice and the interference of two coherent splitted one dimensional condensates. The results give insight into the dynamics and impacts of solitons in these systems.

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