title: Stable vortex-bright-soliton structures in two-component Bose-Einstein condensates.
abstract: 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.
authors.affiliation: Warwick Mathematics Institute, University of Warwick, Coventry CV4 7AL, United Kingdom.
authors.forename: K J H
authors.initials: KJ
authors.lastname: Law
authors.forename: P G
authors.initials: PG
authors.lastname: Kevrekidis
authors.forename: Laurette S
authors.initials: LS
authors.lastname: Tuckerman