Vortex line and ring dynamics in trapped Bose-Einstein condensates

B. Jackson, Jim McCann, C.S. Adams

Research output: Contribution to journalArticlepeer-review

86 Citations (Scopus)

Abstract

Vortex dynamics in inhomogeneous Bose-Einstein condensates are studied numerically in two and three dimensions. We simulate the precession of a single vortex around the center of a trapped condensate, and use the Magnus force to estimate the precession frequency. Vortex ring dynamics in a spherical trap are also simulated, and we discover that a ring undergoes oscillatory motion around a circle of maximum energy. The position of this locus is calculated as a function of the number of condensed atoms. In the presence of dissipation, the amplitude of the oscillation will increase, eventually resulting in self-annihilation of the ring.
Original languageEnglish
Pages (from-to)136041-136047
Number of pages7
JournalPhysical Review A
Volume61
Issue number1
Publication statusPublished - Jan 2000

ASJC Scopus subject areas

  • Physics and Astronomy(all)
  • Atomic and Molecular Physics, and Optics

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