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arXiv · 1102.3373

Inducing vortices in a Bose-Einstein condensate using holographically produced light beams

Johannes F. S. Brachmann·Waseem S. Bakr·Jonathon Gillen·Amy Peng·Markus Greiner
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Abstract

In this paper we demonstrate a technique that can create out-of-equilibrium vortex configurations with almost arbitrary charge and geometry in a Bose-Einstein condensate. We coherently transfer orbital angular momentum from a holographically generated light beam to a Rubidium 87 condensate using a two-photon stimulated Raman process. Using matter wave interferometry, we verify the phase pattern imprinted onto the atomic wave function for a single vortex and a vortex-antivortex pair. In addition to their phase winding, the vortices created with this technique have an associated hyperfine spin texture.

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Johannes F. S. Brachmann, Waseem S. Bakr, Jonathon Gillen, Amy Peng, Markus Greiner. 2011-02-16. Inducing vortices in a Bose-Einstein condensate using holographically produced light beams. https://doi.org/10.1364/oe.19.012984

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