4.8 Article

Observation of an inverse energy cascade in developed acoustic turbulence in superfluid helium

Journal

PHYSICAL REVIEW LETTERS
Volume 101, Issue 6, Pages -

Publisher

AMER PHYSICAL SOC
DOI: 10.1103/PhysRevLett.101.065303

Keywords

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Funding

  1. Engineering and Physical Sciences Research Council (U.K.)
  2. Russian Foundation for Basic Research
  3. Russian Academy of Sciences under the programs Quantum Macrophysics'' and Mathematical Methods in Nonlinear Dynamics.''
  4. [07-02-00728]
  5. Engineering and Physical Sciences Research Council [EP/C00566X/1] Funding Source: researchfish

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We report observation of an inverse energy cascade in second sound acoustic turbulence in He II. Its onset occurs above a critical driving energy and it is accompanied by giant waves that constitute an acoustic analogue of the rogue waves that occasionally appear on the surface of the ocean. The theory of the phenomenon is developed and shown to be in good agreement with the experiments.

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