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Torsional oscillations of a rotating column of 3He-B

Lookup NU author(s): Professor Carlo Barenghi

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Abstract

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.


Publication metadata

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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