Vortex Nucleation in Superfluid 4He

Phys. Rev. Lett. 74, 5056 – Published 19 June 1995
J. Steinhauer, K. Schwab, Yury Mukharsky, J. C. Davis, and Richard E. Packard

Abstract

We have determined the features of a universal energy barrier which mediates the thermal nucleation of quantized vortices. The barrier is deduced from measurements of the intrinsic phase slip critical velocity using both dc flow and single phase slip experiments. It appears that at a given temperature a single curve can predict the outcome of all intrinsic vortex nucleation experiments for flow through small apertures.

DOI: http://dx.doi.org/10.1103/PhysRevLett.74.5056

  • Received 15 February 1995
  • Published in the issue dated 19 June 1995

© 1995 The American Physical Society

Authors & Affiliations

J. Steinhauer, K. Schwab, Yury Mukharsky, J. C. Davis, and Richard E. Packard

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

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