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Transient growth of Kelvin waves on quantized vortices

Lookup NU author(s): Professor Carlo Barenghi

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Abstract

Quantized vortex lines in helium II can be destabilized by a sufficiently large normal fluid velocity which is parallel to the vortex lines (Donnelly - Glaberson instability). We study what happens if the driving normal fluid is not steady but oscillates periodically with time. We show that in certain situations, although individual perturbations decay for t → ∞, a state of transient growth of Kelvin waves is possible, which may explain observations of a small and not reproducible longitudinal component of mutual friction. © 2004 Plenum Publishing Corporation.

Publication metadata

Author(s): Barenghi CF, Tsubota M, Mitani A, Araki T

Publication type: Article

Publication status: Published

Journal: Journal of Low Temperature Physics

Year: 2004

Volume: 134

Issue: 1-2

Pages: 489-494

ISSN (print): 0022-2291

ISSN (electronic): 1573-7357

Publisher: Springer

URL: http://dx.doi.org/10.1023/B:JOLT.0000012600.81530.6c

DOI: 10.1023/B:JOLT.0000012600.81530.6c

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