B. Alkan et B. Unal, ANDERSON TRANSITION IN DILUTE SYSTEMS WITH PURE EXPONENTIAL INTERACTIONS, Nuovo cimento della Societa italiana di fisica. D, Condensed matter,atomic, molecular and chemical physics, biophysics, 17(2), 1995, pp. 209-212
Assuming a completely disordered lattice it is shown that all the stat
es are localized when the disorder parameter x=a(0)/0 reaches the valu
e 0.31, where a is the mean atomic separation and ao is the Bohr radiu
s.