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Orbital viscosity in superfluid He-3-B in a magnetic field.

Fisher, Shaun N. and Suramlishvili, N. (2005) Orbital viscosity in superfluid He-3-B in a magnetic field. Journal of Low Temperature Physics, 138 (3-4). pp. 771-776. ISSN 0022-2291

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Abstract

Orbital viscosity is usually associated with the A phase of superfluid He-3 which has a finite orbital angular momentum even in zero magnetic field. The B phase has no orbital angular momentum in zero magnetic field, but both spin and orbital angular momenta are induced by a field. The Leggett equations for spin dynamics assume that the orbital angular momentum can only change on timescales much longer than those involved in spin dynamics. We calculate the orbital viscosity of the B phase in both the hydrodynamic and ballistic limits. At low temperatures the orbital viscosity becomes vanishingly small which gives rise to the possibility of coupled spin-orbit dynamics.

Item Type: Article
Journal or Publication Title: Journal of Low Temperature Physics
Uncontrolled Keywords: DYNAMICS ; PHASE
Subjects: Q Science > QC Physics
Departments: Faculty of Science and Technology > Physics
ID Code: 23538
Deposited By: Dr Richard P. Haley
Deposited On: 03 Feb 2009 11:23
Refereed?: Yes
Published?: Published
Last Modified: 26 Jul 2012 16:11
Identification Number:
URI: http://eprints.lancs.ac.uk/id/eprint/23538

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