Entanglement measure for the universal classes of fractons

We introduce the notion of entanglement measure for the universal classes of fractons as an entanglement between occupation numbers of fractons in the lowest Landau levels and the rest of the many-body system of particles. This definition came as an entropy of the probability distribution à la Shannon. Fractons are charge-flux systems classified in universal classes of particles or quasiparticles labelled by a fractal or Hausdorff dimension defined within the interval 1