Anomalies and non-log-normal tails in one-dimensional localization with power-law disorder

Details Anomalies and non-log-normal tails in one-dimensional localization with power-law disorder Anomalies and non-log-normal tails in one-dimensional localization with power-law disorder

2003-02-27

arxiv.org/abs/cond-mat/0302580v1

Phys. Rev. Lett. 91, 176601 (2003)

Physics

Condensed Matter

Disordered Systems and Neural Networks

4 pages, 2 figures

Scientific paper

10.1103/PhysRevLett.91.176601

Within a general framework, we discuss the wave function statistics in the Lloyd model of Anderson localization on a one-dimensional lattice with a Cauchy distribution for the random on-site potential. We demonstrate that already in leading order in the disorder strength, there exists a hierarchy of anomalies in the probability distributions of the wave function, the conductance, and the local density of states, for every energy which corresponds to a rational ratio of wave length to the lattice constant. We also show that these distribution functions do have power-law rather then log-normal tails and do not display universal single-parameter scaling. These peculiarities persist in any model with power-law tails of the disorder distribution function.

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