THE MOTT TRANSITION IN DISORDERED-SYSTEMS

We review the recent progress in understanding the Mott transition in disordered systems using the mean-field approach to the strong correla tion problem. It is based on a new functional integral formulation of the disordered interacting electron problem. The saddle-point solution recovers a mean-field theory of the strong correlation problem, and b ecomes exact in the limit of large spatial coordination. We compare th e results of the mean-field theory with experimental findings and indi cate directions for future work.