Solitons, solitonic vortices, and vortex rings in a confined Bose-Einstein condensate

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dc.creatorKomineas, S.
dc.creatorPapanicolaou, N.
dc.date2003-04-04
dc.date2003-11-12
dc.date.accessioned2026-07-07T02:50:37Z
dc.date.available2026-07-07T02:50:37Z
dc.descriptionQuasi-one-dimensional solitons that may occur in an elongated Bose-Einstein condensate become unstable at high particle density. We study two basic modes of instability and the corresponding bifurcations to genuinely three-dimensional solitary waves such as axisymmetric vortex rings and non-axisymmetric solitonic vortices. We calculate the profiles of the above structures and examine their dependence on the velocity of propagation along a cylindrical trap. At sufficiently high velocity, both the vortex ring and the solitonic vortex transform into an axisymmetric soliton. We also calculate the energy-momentum dispersions and show that a Lieb-type mode appears in the excitation spectrum for all particle densities.
dc.descriptionRevTeX 9 pages, 9 figures
dc.identifierhttps://arxiv.org/abs/cond-mat/0304123
dc.identifierhttp://arxiv.org/abs/cond-mat/0304123
dc.identifierPhys. Rev. A 68, 043617 (2003)
dc.identifierdoi:10.1103/PhysRevA.68.043617
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/21168
dc.subjectCondensed Matter
dc.titleSolitons, solitonic vortices, and vortex rings in a confined Bose-Einstein condensate
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