Measurements of vortex line density generated by a quartz tuning fork in superfluid $$^{4}$$ 4 He

Jackson, M. J. and Kolosov, O. and Schmoranzer, D. and Skrbek, L. and Tsepelin, V. and Woods, A. J. (2016) Measurements of vortex line density generated by a quartz tuning fork in superfluid $$^{4}$$ 4 He. Journal of Low Temperature Physics, 183 (3). pp. 208-214. ISSN 0022-2291

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Abstract

We present proof-of-concept measurements of the vortex line density generated by a quartz tuning fork resonator probed by the attenuation of second sound in superfluid 4He at 1.6 K. The force–velocity response of a quartz tuning fork operating at a frequency of 31 kHz exhibited the onset of extra damping at a velocity of 0.5 ms−1. Attenuation of the 5th resonant mode of second sound was observed at the same velocity, indicating the production of vortex lines. Our measurements demonstrate that an increase of the drag coefficient corresponds to the development of quantum turbulence.

Item Type: Journal Article
Journal or Publication Title: Journal of Low Temperature Physics
Additional Information: The final publication is available at Springer via http://dx.doi.org/10.1007/s10909-015-1397-4
Uncontrolled Keywords: /dk/atira/pure/subjectarea/asjc/3100/3104
Subjects:
Departments: Faculty of Science and Technology > Physics
ID Code: 77417
Deposited By: ep_importer_pure
Deposited On: 14 Mar 2016 11:38
Refereed?: Yes
Published?: Published
Last Modified: 15 Oct 2019 03:24
URI: https://eprints.lancs.ac.uk/id/eprint/77417

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