Browse by author
Lookup NU author(s): Professor Carlo Barenghi, Dr Anthony Youd
We consider vortex rings moving in a Bose-Einstein condensate. By numerically solving the Gross-Pitaevskii equation, we show that if the circular shape of the ring is perturbed by helical Kelvin waves of given amplitude and azimuthal wave number, the translational self-induced velocity of the vortex ring is reduced; at large amplitude, the vortex ring halts.
Author(s): Helm JL, Barenghi CF, Youd AJ
Publication type: Article
Publication status: Published
Journal: Physical Review A
Year: 2011
Volume: 83
Issue: 4
Print publication date: 01/04/2011
Date deposited: 20/02/2012
ISSN (print): 1050-2947
ISSN (electronic): 1094-1622
Publisher: American Physical Society
URL: http://dx.doi.org/10.1103/PhysRevA.83.045601
DOI: 10.1103/PhysRevA.83.045601
Altmetrics provided by Altmetric