Multifractal spectra of mean first-passage-time distributions in disordered chains.
The multifractal characterization of the distribution over disorder of the mean first-passage time in a finite chain is revisited. Both, absorbing-absorbing and reflecting-absorbing boundaries are considered. Two models of dichotomic disorder are compared and our analysis clarifies the origin of the multifractality. The phenomenon is only present when the diffusion is anomalous.
Pury
Pedro A
PA
Facultad de Matemática, Astronomía y Física, Universidad Nacional de Córdoba, Ciudad Universitaria, Argentina. pury@famaf.unc.edu.ar
Cáceres
Manuel O
MO