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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
Articles

Abstract

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.

Keywords

Vortex Free Energy Angular Momentum Angular Velocity Magnetic Material 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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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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