Dissipation of Quantum Turbulence in the Zero Temperature Limit

P. M. Walmsley, A. I. Golov, H. E. Hall, A. A. Levchenko, and W. F. Vinen
Phys. Rev. Lett. 99, 265302 – Published 26 December 2007

Abstract

Turbulence, produced by an impulsive spin down from angular velocity Ω to rest of a cube-shaped container, is investigated in superfluid He4 at temperatures 0.08 K–1.6 K. The density of quantized vortex lines L is measured by scattering negative ions. Homogeneous turbulence develops after time t20/Ω and decays as Lt3/2. The corresponding energy flux ϵ=ν(κL)2t3 is characteristic of quasiclassical turbulence at high Re with a saturated energy-containing length. The effective kinematic viscosity in T=0 limit is ν=0.003κ, where κ=103cm2s1 is the circulation quantum.

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  • Received 2 October 2007

DOI:https://doi.org/10.1103/PhysRevLett.99.265302

©2007 American Physical Society

Authors & Affiliations

P. M. Walmsley1, A. I. Golov1, H. E. Hall1, A. A. Levchenko2, and W. F. Vinen3

  • 1School of Physics and Astronomy, The University of Manchester, Manchester M13 9PL, United Kingdom
  • 2Institute of Solid State Physics, Russian Academy of Sciences, Chernogolovka 142432, Russia
  • 3School of Physics and Astronomy, University of Birmingham, Birmingham B15 2TT, United Kingdom

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Issue

Vol. 99, Iss. 26 — 31 December 2007

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