Atomic Josephson vortex

Details Atomic Josephson vortex Atomic Josephson vortex

2005-08-14

arxiv.org/abs/cond-mat/0508342v3

Physics

Condensed Matter

Other Condensed Matter

7 pages, 3 figures, revtex4, submitted to Phys. Rev. A, title and abstract changed, old sections revised, new sections added,

Scientific paper

10.1103/PhysRevA.73.013627

We show that Josephson vortices in a quasi-1D atomic Bose Josephson junction can be controllably manipulated by imposing a difference of chemical potentials on the atomic BEC waveguides forming the junction. This effect, which has its origin in the Berry phase structure of a vortex, turns out to be very robust in the whole range of the parameters where such vortices can exist. We also propose that a Josephson vortex can be created by the phase imprinting technique and can be identified by a specific tangential feature in the interference picture produced by expanding clouds released from the waveguides.

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