Kelvin-wave cascade on a vortex in superfluid He⁴ at a very low temperature

William Vinen, M Tsubota, A Mitani

Research output: Contribution to journalArticle

10 Citations (Scopus)

Abstract

A study by computer simulation is reported of the behavior of a quantized vortex line at a very low temperature when there is continuous excitation of low-frequency Kelvin waves. There is no dissipation except by phonon radiation at a very high frequency. It is shown that nonlinear coupling leads to a net flow of energy to higher wave numbers and to the development of a simple spectrum of Kelvin waves that is insensitive to the strength and frequency of the exciting drive. The results are likely to be relevant to the decay of turbulence in superfluid 4He at very low temperatures.
Original languageEnglish
Pages (from-to)135301
Number of pages1
JournalPhysical Review Letters
Volume91
Issue number13
Early online date1 Sep 2003
DOIs
Publication statusPublished - 1 Sep 2003

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