Atomic Josephson vortex
Abstract
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.
Cite
@article{arxiv.cond-mat/0508342,
title = {Atomic Josephson vortex},
author = {V. M. Kaurov and A. B. Kuklov},
journal= {arXiv preprint arXiv:cond-mat/0508342},
year = {2009}
}
Comments
7 pages, 3 figures, revtex4, submitted to Phys. Rev. A, title and abstract changed, old sections revised, new sections added, references added