Stable vortex-bright-soliton structures in two-component Bose-Einstein condensates

We report the numerical realization of robust two-component structures in 2D and 3D Bose-Einstein condensates with nontrivial topological charge in one component. We identify a stable symbiotic state in which a higher-dimensional bright soliton exists even in a homogeneous setting with defocusing in...

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Bibliographic Details
Published in:Physical review letters 2010-10, Vol.105 (16), p.160405-160405, Article 160405
Main Authors: Law, K J H, Kevrekidis, P G, Tuckerman, Laurette S
Format: Article
Language:English
Subjects:
BOSE-EINSTEIN CONDENSATION
CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS
CONFINEMENT
MATHEMATICS
POTENTIALS
QUASI PARTICLES
SOLITONS
THREE-DIMENSIONAL CALCULATIONS
TOPOLOGY
TWO-DIMENSIONAL CALCULATIONS
VORTICES
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Summary:We report the numerical realization of robust two-component structures in 2D and 3D Bose-Einstein condensates with nontrivial topological charge in one component. We identify a stable symbiotic state in which a higher-dimensional bright soliton exists even in a homogeneous setting with defocusing interactions, due to the effective potential created by a stable vortex in the other component. The resulting vortex-bright-solitons, generalizations of the recently experimentally observed dark-bright solitons, are found to be very robust both in the homogeneous medium and in the presence of external confinement.
ISSN:0031-9007
1079-7114
DOI:10.1103/physrevlett.105.160405