Precession of a single vortex line in superfluid B3

Phys. Rev. Lett. 68, 1327 – Published 2 March 1992
R. J. Zieve, Yu. Mukharsky, J. D. Close, J. C. Davis, and R. E. Packard

Abstract

This paper reports the discovery of a new vortex phenomenon in superfluid B3. A single filament of quantized vortex line precesses as a solid body around a wire extending along the axis of a cylinder. The precession frequency equals the angular velocity of the apparatus at which the presence of a single quantum of circulation minimizes the system’s free energy. The period of precession is related to the circulation quantum and the dimensions of the apparatus. Thus a measurement of the precession period is an accurate determination of the quantum unit. We find κ=(1.020±0.03)h/2m3, where m3 is the mass of the He3 atom.

DOI: http://dx.doi.org/10.1103/PhysRevLett.68.1327

  • Received 8 January 1992
  • Published in the issue dated 2 March 1992

© 1992 The American Physical Society

Authors & Affiliations

R. J. Zieve, Yu. Mukharsky, J. D. Close, J. C. Davis, and R. E. Packard

  • Department of Physics, University of California, Berkeley, California 94720

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