Universality of the metal-insulator transition in three-dimensional disordered systems

The universality of the metal-insulator transition in three-dimensional disordered system is confirmed by numerical analysis of the scaling properties of the electronic wave functions. We prove that the critical exponent $\nu$ and the multifractal dimensions $d_q$ are independent on the microscopic definition of the disorder and universal along the critical line which separates the metallic and the insulating regime.