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Wave Turbulence in Superfluid ^He: Energy Cascades & Rogue Waves in the Laboratory.

Research output: Contribution in Book/Report/ProceedingsChapter

Published

Publication date2009
Host publicationLet's Face Chaos Through Nonlinear Dynamics : Proceedings of "Let's Face Chaos Through Nonlinear Dynamics" 7th International Summer School and Conference
EditorsMarko Robnik, Valery Romanovski
Place of publicationMelville, N.Y.
PublisherAmerican Institute of Physics
Pages53-62
Number of pages10
Edition1076
ISBN (Print)978-0-7354-0607-0
Original languageEnglish

Publication series

NameAIP Conference Proceedings
PublisherAmerican Institute of Physics

Abstract

Recent work on second sound acoustic turbulence in superfliud '^He is reviewed. Observations of forward and inverse energy cascades are described. The onset of the inverse cascade 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 outUned and shown to be in good agreement with the experiments.