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Dresden 2011 – scientific programme

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A: Fachverband Atomphysik

A 26: Poster III

A 26.61: Poster

Thursday, March 17, 2011, 16:00–18:30, P2

3D-self-trapping of Rydberg-dressed BECs — •Nils Henkel1, Fabian Maucher1, Stefan Skupin1,2, and Thomas Pohl11Max Planck Institute for the Physics of Complex Systems, Nöthnitzer Straße 38, 01187 Dresden — 2Friedrich Schiller University, Institute of Condensed Matter Theory and Optics, 07743 Jena

We demonstrate that optical coupling of Bose-Einstein condensates can lead to the formation of stable three-dimensional bright solitons, bound by a single pair of Rydberg atoms. It is shown that off-resonant dressing with Rydberg d-states of Rubidium provides an anisotropic but attractive long range interaction which could enable the first realization of such three-dimensional structures. Taking into account both the long range interaction and the short range contact interaction between groundstates, we find large self-trapped three-dimensional solitons for realistic experimental parameters and study their stability.

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