Observations of the Superfluid Circulation around a Wire in a Rotating Vessel Containing Liquid He II

  • S. F. Kral
  • W. ZimmermannJr.


Several years ago observations in our laboratory of the superfluid circulation around a fine wire stretched along the axis of a cylindrical container filled With liquid He II gave rather clear evidence of preferential metastability at quantum levels in the range from − 3 to + 3 quantum units.1 The quantum unit of circulation is h/m, where h is Planck’s constant and m is the mass of the 4He atom. Thus those observations strengthened the evidence presented by Vinen a few years earlier for the existence of quantization of circulation in superfluid helium flow around a solid obstacle.2 Our measurements at that time were all conducted with the wire and container at rest.


Angular Velocity Quantum Level Cylindrical Container Fine Wire Metastable Region 
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  1. 1.
    S.C. Whitmore and W. Zimmermann, Jr., Phys. Rev. 166, 181 (1968).ADSCrossRefGoogle Scholar
  2. 2.
    W.F. Vinen, Proc. Roy. Soc. (London) A260, 218 (1961).ADSCrossRefGoogle Scholar
  3. 3.
    A.L. Fetter, Phys. Rev. 153, 285 (1967).ADSMATHCrossRefGoogle Scholar
  4. 4.
    D. Stauffer and A.L. Fetter, Phys. Rev. 168, 156 (1968).ADSCrossRefGoogle Scholar

Copyright information

© Springer Science+Business Media New York 1974

Authors and Affiliations

  • S. F. Kral
    • 1
  • W. ZimmermannJr.
    • 1
  1. 1.School of Physics and AstronomyUniversity of MinnesotaMinneapolisUSA

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