Kelvin-Wave Cascade on a Vortex in Superfluid He4 at a Very Low Temperature

W. F. Vinen, Makoto Tsubota, and Akira Mitani
Phys. Rev. Lett. 91, 135301 – Published 25 September 2003

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 He4 at very low temperatures.

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  • Received 6 June 2003

DOI:https://doi.org/10.1103/PhysRevLett.91.135301

©2003 American Physical Society

Authors & Affiliations

W. F. Vinen

  • School of Physics and Astronomy, University of Birmingham, Birmingham B15 2TT, United Kingdom

Makoto Tsubota and Akira Mitani

  • Department of Physics, Osaka City University, Sumiyoshi -ku, Osaka 558-8585, Japan

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Issue

Vol. 91, Iss. 13 — 26 September 2003

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