Azimuthal vortex clusters in Bose-Einstein condensates

Volodymyr M. Lashkin, Anton S. Desyatnikov, Elena A. Ostrovskaya, Yuri S. Kivshar

Research output: Contribution to journalArticle

6 Citations (Scopus)

Abstract

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, thus simultaneous phase and density modulation enforces the formation of a vortex cluster both in rotating and in nonrotating BEC clouds.

Original languageEnglish
Article number013620
JournalPhysical Review A - Atomic, Molecular, and Optical Physics
Volume85
Issue number1
DOIs
Publication statusPublished - Jan 17 2012
Externally publishedYes

ASJC Scopus subject areas

  • Atomic and Molecular Physics, and Optics

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