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Physical Review Letters

Superflow in Restricted Geometries

R. J. Donnelly, R. N. Hills, Paul Harry Roberts

Published Mar 12, 1979• 15 citations
Publisher

Abstract

We propose a "competing barrier model" for nucleation of quantized vortices in small channels. The results are compared to experiments on decay of persistent currents, critical velocities, onset temperatures, and the effective superfluid density at onset.
DOI
10.1103/physrevlett.42.725

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