Journal of Low Temperature Physics

, Volume 148, Issue 3–4, pp 251–255

Nonlinear Second Sound Waves and Acoustic Turbulence in Superfluid 4He

  • V. B. Efimov
  • A. N. Ganshin
  • P. V. E. McClintock
  • G. V. Kolmakov
  • L. P. Mezhov-Deglin
Article

DOI: 10.1007/s10909-007-9386-x

Cite this article as:
Efimov, V.B., Ganshin, A.N., McClintock, P.V.E. et al. J Low Temp Phys (2007) 148: 251. doi:10.1007/s10909-007-9386-x

Abstract

The preliminary results of an investigation of nonlinear second sound waves in a high quality resonator filled with superfluid 4He are presented and discussed. It is found that, for a sufficiently strong periodic driving force, a cascade of second sound waves is formed at multiple harmonics of the driving frequency over the extremely wide frequency range 1–100 kHz. It can be described by a power law Aω=const.×ωm, where the scaling index m≈1. These observation can be attributed to the formation of a Kolmogorov-like turbulent cascade in the system of second sound waves, accompanied by directed energy flux through the frequency scales. It manifests itself as a limiting of the amplitude of a standing wave, a distortion of the shape of the initially harmonic waves, and a reduction of the effective quality factor Q of the resonator.

PACS

67.40.Pm 67.60.Fp 

Copyright information

© Springer Science+Business Media, LLC 2007

Authors and Affiliations

  • V. B. Efimov
    • 1
    • 2
  • A. N. Ganshin
    • 2
  • P. V. E. McClintock
    • 2
  • G. V. Kolmakov
    • 1
    • 2
  • L. P. Mezhov-Deglin
    • 1
  1. 1.Institute of Solid State Physics RASChernogolovkaRussia
  2. 2.Department of PhysicsLancaster UniversityLancasterUK

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