New experiments on quantization of circulation in superfluid [sup 4]He

The authors measure circulation in superfluid [sup 4]He around a thin vibrating wire which can serve as the core of a vortex. As well as confirming earlier measurements of the quantum of circulation, their data yield new information on the dynamics of transitions between stable circulation states. A...

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Bibliographic Details
Published in:Journal of low temperature physics 1993-02, Vol.90:3-4
Main Authors: Zieve, R.J., Close, J.D. Davis, J.C., Packard, R.E.
Format: Article
Language:English
Subjects:
CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY
EVEN-EVEN NUCLEI
FLUID FLOW
FLUX QUANTIZATION
HELIUM 4
HELIUM ISOTOPES
ISOTOPES
LIGHT NUCLEI
MAGNETIC FLUX
NUCLEI
STABLE ISOTOPES
SUPERFLUIDITY
TEMPERATURE RANGE 0000-0013 K
TEMPERATURE RANGE 665411 > Basic Superconductivity Studies-- (1992-)
VORTEX FLOW
VORTICES
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Summary:The authors measure circulation in superfluid [sup 4]He around a thin vibrating wire which can serve as the core of a vortex. As well as confirming earlier measurements of the quantum of circulation, their data yield new information on the dynamics of transitions between stable circulation states. A situation in which a vortex line partially detaches from the wire, with the free end precessing about the wire, is observed.
ISSN:0022-2291
1573-7357
DOI:10.1007/BF00682001