Vortex density fluctuations in quantum turbulence
  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. 
Andrew W. Baggaley, Carlo F. Barenghi
cond-mat.stat-mech physics.comp-ph physics.flu-dyn