Journal of Low Temperature Physics

, Volume 98, Issue 1–2, pp 47–65 | Cite as

Vortex configurations in a freely rotating superfluid drop

  • Gregory H. Bauer
  • Russell J. Donnelly
  • W. F. Vinen


The equilibrium configurations of a single vortex in a freely rotating superfluid drop have been determined. The potential barrier to vortex nucleation has also been examined. A freely rotating drop is constrained to rotate at a fixed angular momentum, as opposed to fluid in a rotating vessel, where the vessel is usually constrained to rotate at fixed angular velocity. Vortex configurations that minimize the free energy have been found for a range of angular momenta. These configurations are not necessarily on the axis of rotation as is the case for a vessel rotating at a constant angular velocity. The nucleation of a vortex is shown to be opposed by a barrier in the free energy. This barrier narrows and decreases in height as the angular momentum of the drop is increased.


Vortex Free Energy Angular Momentum Angular Velocity Magnetic Material 
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Copyright information

© Plenum Publishing Corporation 1995

Authors and Affiliations

  • Gregory H. Bauer
    • 1
  • Russell J. Donnelly
    • 1
  • W. F. Vinen
    • 2
  1. 1.Department of PhysicsUniversity of OregonEugeneUSA
  2. 2.Department of PhysicsUniversity of BirminghamBirminghamUK

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