Critical parameters from a generalized multifractal analysis at the Anderson transition.
We propose a generalization of multifractal analysis that is applicable to the critical regime of the Anderson localization-delocalization transition. The approach reveals that the behavior of the probability distribution of wave function amplitudes is sufficient to characterize the transition. In combination with finite-size scaling, this formalism permits the critical parameters to be estimated without the need for conductance or other transport measurements. Applying this method to high-precision data for wave function statistics obtained by exact diagonalization of the three-dimensional Anderson model, we estimate the critical exponent ν=1.58±0.03.
Rodriguez
Alberto
A
Department of Physics and Centre for Scientific Computing, University of Warwick, Coventry, CV4 7AL, United Kingdom. A.Rodriguez-Gonzalez@warwick.ac.uk
Vasquez
Louella J
LJ
Slevin
Keith
K
Römer
Rudolf A
RA