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The effect of pressure on vortex nucleation in superfluid4He

  • Liquid Helium
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Czechoslovak Journal of Physics Aims and scope

Abstract

The pressure dependence of critical superflow through a small aperture has been studied experimentally: it is shown to yield an activation energy for vortex nucleation quite comparable to that obtained from the temperature dependence. The overall variation is however, weaker than that predicted by the vortex half-ring model, revealing a strong influence of the walls.

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Authors and Affiliations

  1. Laboratoire de Physique des Solides, Université Paris-Sud, Laboratoire associé au CNRS, 91405, Orsay, France

    Éric Varoquax

  2. Service de Physique de l’État Condensé, CEA, Centre d’Études de Saclay, 91191, Gif-sur-Yvette Cedex, France

    Olivier Avenel

Authors
  1. Éric Varoquax
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  2. Olivier Avenel
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Varoquax, É., Avenel, O. The effect of pressure on vortex nucleation in superfluid4He. Czech J Phys 46 (Suppl 1), 41–42 (1996). https://doi.org/10.1007/BF02569436

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  • DOI: https://doi.org/10.1007/BF02569436

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