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Czechoslovak Journal of Physics

, Volume 46, Supplement 1, pp 15–16 | Cite as

Nucleation of vortices in superfluid3He-B

  • V. M. Ruutu
  • Ü. Parts
  • B. Plaçais
  • Wen Xu
  • G. E. Volovik
  • M. Krusius
Liquid Helium

Abstract

In a smooth-walled rotating container vortices nucleate spontaneously in3He-B at a critical velocityv c (T, P) which is related to the bulk superflow instability velocityv cb (T, P). This process takes place at the wall of the container. Vortices are also observed to nucleate at lower velocities in the bulk liquid in ionizing radiation. For this thermal neutrons are most practical since for them the absorption cross section is large in3He. An absorption event creates local overheating, a hot bubble in the cold superflow. An increasing number of vortex rings is observed to emerge from the bubble as a function of the superflow velocity.

Keywords

Vortex Thermal Neutron Vortex Ring Neutron Source Vortex Line 
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.

References

  1. [1]
    Ü. Parts, et al., Europhys. Lett.31 (1995) 449.CrossRefGoogle Scholar

Copyright information

© Institute of Physics, Acad. Sci. CR 1996

Authors and Affiliations

  • V. M. Ruutu
    • 1
  • Ü. Parts
    • 1
  • B. Plaçais
    • 2
  • Wen Xu
    • 1
  • G. E. Volovik
    • 1
  • M. Krusius
    • 1
  1. 1.Low Temperature LaboratoryHelsinki University of TechnologyEspooFinland
  2. 2.Laboratoire de Physique de la Matière CondenséeEcole Normale SupérieureParisFrance

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