  The energy spectrum of quantum turbulence obeys Kolmogorov's law. The vortex
length distribution (VLD), meaning the size distribution of the vortices, in
Kolmogorov quantum turbulence also obeys a power law. We propose here an
innovative idea to study the origin of the power law of the VLD. The nature of
quantized vortices allows one to describe the decay of quantum turbulence with
a simple model that is similar to the Barabasi-Albert model of large networks.
We show here that such a model can reproduce the power law of the VLD well.
