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Decay of pure quantum turbulence in superfluid He-3-B.

Research output: Contribution to Journal/MagazineJournal articlepeer-review

<mark>Journal publication date</mark>23/01/2006
<mark>Journal</mark>Physical review letters
Issue number3
Number of pages0
Pages (from-to)035301
Publication StatusPublished
<mark>Original language</mark>English


We describe measurements of the decay of pure superfluid turbulence in superfluid He-3-B, 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 He-4 at relatively high temperatures. Further, our results strongly suggest that the decay is governed by the superfluid circulation quantum rather than kinematic viscosity.