Wave transport in one-dimensional disordered systems with finite-width   potential steps
  An amazingly simple model of correlated disorder is a one-dimensional chain of n potential steps with a fixed width lc and random heights. A theoretical analysis of the average transmission coefficient and Landauer resistance as functions of n and klc predicts two distinct regimes of behavior, one marked by extreme sensitivity and the other associated with exponential behavior of the resistance. The sensitivity arises in n and klc for klc approximately pi, where the system is nearly transparent. Numerical simulations match the predictions well, and they suggest a strong motivation for experimental study. 
Marlos D\'iaz, Pier A. Mello, M. Y\'epez and Steven Tomsovic
cond-mat.dis-nn