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arXiv · 1706.09388

Striped states in a many-body system of tilted dipoles

Matthias Wenzel·Fabian Böttcher·Tim Langen·Igor Ferrier-Barbut·Tilman Pfau
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Abstract

We study theoretically and experimentally the behaviour of a strongly confined dipolar Bose-Einstein condensate, in the regime of quantum-mechanical stabilization by beyond-mean-field effects. Theoretically, we demonstrate that self-organized striped ground states are predicted in the framework of the extended Gross-Pitaevskii theory. Experimentally, by tilting the magnetic dipoles we show that self-organized striped states can be generated, likely in their metastable state. Matter-wave interference experiments with multiple stripes show that there is no long-range off-diagonal order (global phase coherence). We outline a parameter range where global phase coherence could be established, thus paving the way towards the observation of supersolid states in this system.

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Matthias Wenzel, Fabian Böttcher, Tim Langen, Igor Ferrier-Barbut, Tilman Pfau. 2017-06-28. Striped states in a many-body system of tilted dipoles. https://doi.org/10.1103/physreva.96.053630

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