Conductance distribution in disordered quantum wires: Crossover between the metallic and insulating regimes

摘要

We calculate the distribution of the conductance P(g) for aquasi-one-dimensional system in the metal to insulator crossover regime, basedon a recent analytical method valid for all strengths of disorder. We show theevolution of P(g) as a function of the disorder parameter from a insulator to ametal. Our results agree with numerical studies reported on this problem, andwith analytical results for the average and variance of g.