Vortex density fluctuations in quantum turbulence

Details Vortex density fluctuations in quantum turbulence Vortex density fluctuations in quantum turbulence

2011-03-31

arxiv.org/abs/1103.6139v4

Physics

Condensed Matter

Statistical Mechanics

7 Pages, 7 figures

Scientific paper

10.1103/PhysRevB.84.020504

We compute the frequency spectrum of turbulent superfluid vortex density fluctuations and obtain the same Kolmogorov scaling which has been observed in a recent experiment in Helium-4. We show that the scaling can be interpreted in terms of the spectrum of reconnecting material lines. The calculation is performed using a vortex tree algorithm which considerably speeds up the evaluation of Biot-Savart integrals.

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