Excitation spectroscopy of vortex states in dilute Bose-condensed gases

Details Excitation spectroscopy of vortex states in dilute Bose-condensed gases Excitation spectroscopy of vortex states in dilute Bose-condensed gases

1996-10-10

arxiv.org/abs/cond-mat/9610093v1

Physics

Condensed Matter

11 pages, RevTeX

Scientific paper

10.1103/PhysRevA.56.587

We apply linear-response analysis to the Gross-Pitaevskii equation to obtain the excitation frequencies of a Bose-Einstein condensate in a vortex state, and apply it to a system of Rubidium atoms confined in a time-averaged orbiting potential trap. The excitation frequencies of a vortex differ significantly from those of the ground state, and may therefore be used to obtain a spectroscopic signature of the presence of a vortex state.

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