Landau dynamics of a grey soliton in a trapped condensate
arXiv:cond-mat/0408660 · doi:10.1103/PhysRevLett.93.240403
Abstract
It is shown that grey soliton dynamics in an one-dimensional trap can be treated as Landau dynamics of a quasi-particle. A soliton of arbitrary amplitude moves in the trapping potential without deformation of its density profile as a particle of mass . The dynamics in the local density approximation is shown to be consistent with the perturbation theory for dark solitons. Dynamics of a vortex ring in a trap is discussed qualitatively.
arXiv commentREVTEX, 4 pages, submitted
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Cited by in corpus (82)
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