Comment on ''Trapping in quasilocalized systems: From exponential to power-law decay''

The asymptotic behavior of the logarithm of the survival probability in a one-dimensional disordered lattice (hopping rates W-/sup α/, 0≤W≤1, 0<α<1) with a random distribution of traps is shown to be -2(1-α)lnt when there is no bias field present and {-(1-α)+ln(1-x)-ln[(1 +eta)/(1-eta)]}lnt with a strong bias field (where x is the probability that any site is a trap)