Slowing down of vortex rings in Bose-Einstein condensates

John L. Helm, Carlo F. Barenghi, and Anthony J. Youd
Phys. Rev. A 83, 045601 – Published 8 April 2011

Abstract

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.

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  • Received 18 September 2010

DOI:https://doi.org/10.1103/PhysRevA.83.045601

©2011 American Physical Society

Authors & Affiliations

John L. Helm, Carlo F. Barenghi, and Anthony J. Youd

  • School of Mathematics and Statistics, Newcastle University, Newcastle upon Tyne NE1 7RU, United Kingdom

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Issue

Vol. 83, Iss. 4 — April 2011

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