Turbulence of Second Sound Waves in Superfluid 4He: Effect of Low-Frequency Resonant Perturbations.

McClintock, Peter V. E. and Efimov, V. B. and Ganshin, A. N. and Kolmakov, G. V. and Mezhov-Deglin, L. P. (2008) Turbulence of Second Sound Waves in Superfluid 4He: Effect of Low-Frequency Resonant Perturbations. Journal of Low Temperature Physics, 150 (3-4). pp. 394-401. ISSN 0022-2291

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Abstract

We report the results of investigations of acoustic turbulence in a system of nonlinear second sound waves in a high-quality resonator filled with superfluid 4He. It was observed that subharmonics of a periodic driving force applied to the system may be generated via a parametric instability. We find that application of an additional low-frequency pumping to the turbulent system results in the generation of waves at combination frequencies of the driving forces and also leads to substantial changes in the energy spectrum of the acoustic oscillations.

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/s10909-007-9563-y
Uncontrolled Keywords: /dk/atira/pure/researchoutput/libraryofcongress/qc
Subjects:
Departments: Faculty of Science and Technology > Physics
ID Code: 22894
Deposited By: Professor P. V. E. McClintock
Deposited On: 06 Jan 2009 18:18
Refereed?: Yes
Published?: Published
Last Modified: 17 Aug 2019 00:29
URI: https://eprints.lancs.ac.uk/id/eprint/22894

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