Experimental study of the nonlinear second sound wave interaction in superfluid 4He.

Efimov, V. B. and Ganshin, A. N. and McClintock, Peter V. E. and Kolmakov, G. V. (2006) Experimental study of the nonlinear second sound wave interaction in superfluid 4He. Journal of Low Temperature Physics, 145 (1-4). pp. 155-164. ISSN 0022-2291

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Abstract

We report preliminary results of investigations of the nonlinear second sound wave interaction in a high-quality resonator filled with superfluid 4He. The anomalously large nonlinear coefficient of second sound allows us to observe the formation of higher harmonics while pumping the resonator at a resonant frequency and, in this manner, to study wave energy transfer from the low-frequency domain to the high-frequency domain over a wide frequency range. The observed nonequilibrium stationary wave distribution of amplitudes A f for multiple harmonics over wave frequency f may be described as , where s ≥ 1.5.

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/s10909-006-9236-2
Uncontrolled Keywords:
/dk/atira/pure/researchoutput/libraryofcongress/qc
Subjects:
ID Code:
82000
Deposited By:
Deposited On:
07 Oct 2016 23:00
Refereed?:
Yes
Published?:
Published
Last Modified:
03 Apr 2020 01:03