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Lookup NU author(s): Professor Carlo Barenghi
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We have analysed the axisymmetric and non-axisymmetric modes of a continuum of vortices in a rotating superfluid. We have investigated how changing the temperature affects the growth rate of the disturbances. We find that, in the long axial wavelength limit the condition q = α/ (1 - α′) = 1, where α and α′ are temperature-dependent mutual friction parameters, is the crossover between damped and propagating Kelvin waves. Thus at temperatures for which q > 1, perturbations on the vortices are unlikely to cause vortex reconnections and turbulence. These results are in agreement with the recent discovery of Finne et al of an intrinsic condition for the onset of quantum turbulence in 3He-B. © 2005 Springer Science+Business Media, Inc.
Author(s): Henderson KL, Barenghi CF
Publication type: Article
Publication status: Published
Journal: Journal of Low Temperature Physics
Year: 2005
Volume: 138
Issue: 3-4
Pages: 577-582
Print publication date: 01/02/2005
ISSN (print): 0022-2291
ISSN (electronic): 1573-7357
Publisher: Springer
URL: http://dx.doi.org/10.1007/s10909-005-2264-5
DOI: 10.1007/s10909-005-2264-5
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