Quantized Vorticity in Superfluid 3He-A: Structure and Dynamics

  • R. Blaauwgeers
  • V.B. Eltsov
  • M. Krusius
  • J. Ruohio
  • R. Schanen
Chapter
Part of the Lecture Notes in Physics book series (LNP, volume 571)

Abstract

Superfluid 3He-A displays the largest variety in vortex structure among the presently known coherent quantum systems. The experimentally verified information comes mostly from NMR measurements on the rotating .uid, from which the orderparameter texture can often be worked out. The various vortex structures differ in the topology of their order-parameter field, in energy, critical velocity, and in their response to temporal variations in the externally applied flow. They require di.erent experimental conditions for their creation. When the flow is applied in the superfluid state, the structure with the lowest critical velocity is formed. In 3He-A this leads to the various forms of continuous (or singularity-free) vorticity. Which particular structure is created depends on the externally applied conditions and on the global order-parameter texture.

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Copyright information

© Springer-Verlag Berlin Heidelberg 2001

Authors and Affiliations

  • R. Blaauwgeers
    • 1
    • 2
  • V.B. Eltsov
    • 1
    • 3
  • M. Krusius
    • 1
  • J. Ruohio
    • 1
  • R. Schanen
    • 1
    • 4
  1. 1.Low Temperature LabHelsinki University of TechnologyHUTFinland
  2. 2.Kamerlingh Onnes LabLeiden UniversityLeidenThe Netherlands
  3. 3.Kapitza InstituteMoscowRussia
  4. 4.CRTBT-CNRSGrenoble Cedex 09France

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