Vortex oscillations in confined Bose-Einstein condensate interacting with 1D optical lattice

Details Vortex oscillations in confined Bose-Einstein condensate interacting with 1D optical lattice Vortex oscillations in confined Bose-Einstein condensate interacting with 1D optical lattice

2005-03-20

arxiv.org/abs/cond-mat/0503509v2

Physics

Condensed Matter

Other Condensed Matter

5 pages, 7 figures. Title, abstract and references are updated

Scientific paper

10.1143/JPSJ.74.2764

We study Bose-Einstein condensate of atomic Boson gases trapped in a composite potential of a harmonic potential and an optical lattice potential. We found a series of collective excitations that induces localized vortex oscillations with a characteristic wavelength. The oscillations might be observed experimentally when radial confinement is tight. We present the excitation spectra of the vortex oscillation modes and propose a way to experimentally excite the modes.

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