12,000

We have over 12,000 students, from over 100 countries, within one of the safest campuses in the UK

93%

93% of Lancaster students go into work or further study within six months of graduating

Home > Research > Publications & Outputs > AB interface in rotating superfluid He-3: the f...
View graph of relations

« Back

AB interface in rotating superfluid He-3: the first example of a superfluid shear-flow instability.

Research output: Contribution to journalJournal article

Published

  • R. Blaauwgeers
  • V. B. Eltsov
  • G. Eska
  • A. P. Finne
  • R. P. Haley
  • M. Krusius
  • L. Skrbek
  • G. E. Volovik
Journal publication date05/2003
JournalPhysica B: Condensed Matter
Journal number1
Volume329-33
Number of pages5
Pages57-61
Original languageEnglish

Abstract

The Kelvin-Helmholtz instability takes place on the interface between two horizontally stratified fluid layers which are in a state of relative shear flow with respect to each other. The problem was solved for the ideal case of inviscid and incompressible fluids in 1871 by Lord Kelvin. The first case of superfluid shear flow has been discovered in uniformly rotating superfluid He-3, when the phase boundary between the A and B phases is maintained at a stable location with a magnetic barrier field. At sufficiently high rotation the AB interface undergoes an instability, in which the interface becomes corrugated in a standing-wave pattern. The critical velocity of this process displays the temperature and magnetic field dependences which fit the characteristics of the Kelvin-Helmholtz instability. (C) 2003 Elsevier Science B.V. All rights reserved.