Topological Atom Laser

Details Topological Atom Laser Topological Atom Laser

2003-01-28

arxiv.org/abs/cond-mat/0301554v1

Physics

Condensed Matter

Soft Condensed Matter

7 pages, 5 figures

Scientific paper

We demonstrate how a topological atom laser can be realized by output coupling a trapped vortex state with a Raman scattering process. We find a linearized analytic solution from which a generalized resonance condition for Raman output coupling is developed. Using numerical simulations of a two component Gross-Pitaevskii equation in two and three dimensions the output beam from a trapped central vortex state is analyzed for cases of pulsed and continuous coupling where the vortex core is either transverse or parallel to the direction of propagation. We show how the parameters of the Raman light fields control the spatial phase of the output beam.

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