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Lookup NU author(s): Professor Carlo Barenghi
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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.
Author(s): Barenghi CF, Tsubota M, Mitani A, Araki T
Publication type: Article
Publication status: Published
Journal: Journal of Low Temperature Physics
ISSN (print): 0022-2291
ISSN (electronic): 1573-7357
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