Analysis of self--averaging properties in the transport of particles   through random media
  We investigate self-averaging properties in the transport of particles through random media. We show rigorously that in the subdiffusive anomalous regime transport coefficients are not self--averaging quantities. These quantities are exactly calculated in the case of directed random walks. In the case of general symmetric random walks a perturbative analysis around the Effective Medium Approximation (EMA) is performed. 
J.M. Lopez, M.A. Rodriguez and L. Pesquera