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Azimuthal vortex clusters in Bose-Einstein condensates

Lashkin, Volodymyr M; Desyatnikov, Anton S; Ostrovskaya, Elena; Kivshar, Yuri

Description

We describe, analytically and numerically, topologically nontrivial stationary states with azimuthal modulation of density in a repulsive Bose-Einstein condensate (BEC) confined in a harmonic trap. We show that, depending on the number of density peaks and total topological charge, these states can have a sophisticated phase texture associated with a vortex cluster. For a given topological charge, the form of density distribution and the structure of phase singularities are uniquely linked,...[Show more]

dc.contributor.authorLashkin, Volodymyr M
dc.contributor.authorDesyatnikov, Anton S
dc.contributor.authorOstrovskaya, Elena
dc.contributor.authorKivshar, Yuri
dc.date.accessioned2015-12-10T22:58:21Z
dc.identifier.issn1050-2947
dc.identifier.urihttp://hdl.handle.net/1885/60818
dc.description.abstractWe describe, analytically and numerically, topologically nontrivial stationary states with azimuthal modulation of density in a repulsive Bose-Einstein condensate (BEC) confined in a harmonic trap. We show that, depending on the number of density peaks and total topological charge, these states can have a sophisticated phase texture associated with a vortex cluster. For a given topological charge, the form of density distribution and the structure of phase singularities are uniquely linked, thus simultaneous phase and density modulation enforces the formation of a vortex cluster both in rotating and in nonrotating BEC clouds.
dc.publisherAmerican Physical Society
dc.rightsAuthor/s retain copyright
dc.sourcePhysical Review A: Atomic, Molecular and Optical Physics
dc.subjectKeywords: Azimuthal modulation; Bose-Einstein condensates; Density distributions; Density modulation; Harmonic trap; Phase singularities; Stationary state; Topological charges; Statistical mechanics; Steam condensers; Topology; Vortex flow
dc.titleAzimuthal vortex clusters in Bose-Einstein condensates
dc.typeJournal article
local.description.notesImported from ARIES
local.identifier.citationvolume85
dc.date.issued2012
local.identifier.absfor020503 - Nonlinear Optics and Spectroscopy
local.identifier.ariespublicationf5625xPUB566
local.type.statusPublished Version
local.contributor.affiliationLashkin, Volodymyr M, Institute for Nuclear Research
local.contributor.affiliationDesyatnikov, Anton S, College of Physical and Mathematical Sciences, ANU
local.contributor.affiliationOstrovskaya, Elena, College of Physical and Mathematical Sciences, ANU
local.contributor.affiliationKivshar, Yuri, College of Physical and Mathematical Sciences, ANU
local.bibliographicCitation.issue1
local.identifier.doi10.1103/PhysRevA.85.013620
dc.date.updated2016-02-24T09:27:09Z
local.identifier.scopusID2-s2.0-84855902852
local.identifier.thomsonID000299264100007
dcterms.accessRightsOpen Access
CollectionsANU Research Publications

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