Numerical Study of a Universal Distribution and Non-UniversalDistributions of Resistance and TransmissionCoefficient in 1-D Disordered Systems

A universal probability distribution of resistance and transmission coefficient in a one dimensional disordered system proposed by Mello from a macroscopic point of view is examined numerically from a microscopic point of view for some tightly binding disordered systems. Some universal relations between the cumulants are well observed at the band center energy E =0 in a weakly disordered system, while these are modified at the other energies E ≠0. They are modified even at E =0 in the strongly disordered system. It is further found that the universal relations are broken in a modified Bernoulli system with an inverse-power law structural correlation.