Decay of Pure Quantum Turbulence in Superfluid He3B

D. I. Bradley, D. O. Clubb, S. N. Fisher, A. M. Guénault, R. P. Haley, C. J. Matthews, G. R. Pickett, V. Tsepelin, and K. Zaki
Phys. Rev. Lett. 96, 035301 – Published 23 January 2006

Abstract

We describe measurements of the decay of pure superfluid turbulence in superfluid He3B, in the low temperature regime where the normal fluid density is negligible. We follow the decay of the turbulence generated by a vibrating grid as detected by vibrating wire resonators. Despite the absence of any classical normal fluid dissipation processes, the decay is consistent with turbulence having the classical Kolmogorov energy spectrum and is remarkably similar to that measured in superfluid He4 at relatively high temperatures. Further, our results strongly suggest that the decay is governed by the superfluid circulation quantum rather than kinematic viscosity.

  • Figure
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  • Received 4 August 2005

DOI:https://doi.org/10.1103/PhysRevLett.96.035301

©2006 American Physical Society

Authors & Affiliations

D. I. Bradley, D. O. Clubb, S. N. Fisher*, A. M. Guénault, R. P. Haley, C. J. Matthews, G. R. Pickett, V. Tsepelin, and K. Zaki

  • Department of Physics, Lancaster University, Lancaster, LA1 4YB, United Kingdom

  • *Electronic address: s.fisher@lancaster.ac.uk

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Vol. 96, Iss. 3 — 27 January 2006

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