On the approach to criticality of a vibrating, macroscopic object in superfluid 3HeB

Lambert, Colin (1990) On the approach to criticality of a vibrating, macroscopic object in superfluid 3HeB. Physica B: Condensed Matter, 165-16 (1). pp. 653-654. ISSN 0921-4526

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Abstract

An intuitive picture of pair breaking by a vibrating wire is developed, which makes dear how quasi-particles can escape from the wire at critical velocities the Landau critical velocity νL. Assuming strong gap suppression at the wire surface, a critical velocity of is obtained, for ideal dipole flow around a wire of circular cross-section. In addition, a further transition to enhanced quasi-particle emission is predicted to occur at a velocity More generally, for non-dipole flow, and where at αl characterizes the local superflow near the surface of the wire.

Item Type:
Journal Article
Journal or Publication Title:
Physica B: Condensed Matter
Uncontrolled Keywords:
/dk/atira/pure/subjectarea/asjc/3100/3104
Subjects:
?? ELECTRONIC, OPTICAL AND MAGNETIC MATERIALSELECTRICAL AND ELECTRONIC ENGINEERINGCONDENSED MATTER PHYSICS ??
ID Code:
58121
Deposited By:
Deposited On:
24 Oct 2012 09:19
Refereed?:
Yes
Published?:
Published
Last Modified:
20 Sep 2023 00:24