Output Coupling from a Trapped Bose-Einstein Condensate in a Vortex State
P B. Blakie, R J. Ballagh, Charles W. Clark
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.
Physical Review A (Atomic, Molecular and Optical Physics)
atom laser, Bose-Einstein condensation, Gross-Pitaevskii, vortex state
, Ballagh, R.
and Clark, C.
Output Coupling from a Trapped Bose-Einstein Condensate in a Vortex State, Physical Review A (Atomic, Molecular and Optical Physics)
(Accessed November 30, 2023)