Crossover from diffusive to strongly localized regime in two-dimensional systems

Details Crossover from diffusive to strongly localized regime in two-dimensional systems Crossover from diffusive to strongly localized regime in two-dimensional systems

2009-12-30

arxiv.org/abs/0912.5437v1

Phys. Rev. B 80, 212201 (2009)

Physics

Condensed Matter

Disordered Systems and Neural Networks

4 pages, 4 figures

Scientific paper

We have studied the conductance distribution function of two-dimensional disordered noninteracting systems in the crossover regime between the diffusive and the localized phases. The distribution is entirely determined by the mean conductance, g, in agreement with the strong version of the single-parameter scaling hypothesis. The distribution seems to change drastically at a critical value very close to one. For conductances larger than this critical value, the distribution is roughly Gaussian while for smaller values it resembles a log-normal distribution. The two distributions match at the critical point with an often appreciable change in behavior. This matching implies a jump in the first derivative of the distribution which does not seem to disappear as system size increases. We have also studied 1/g corrections to the skewness to quantify the deviation of the distribution from a Gaussian function in the diffusive regime.

Affiliated with

Also associated with

No associations

Rating

Crossover from diffusive to strongly localized regime in two-dimensional systems does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with Crossover from diffusive to strongly localized regime in two-dimensional systems, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Crossover from diffusive to strongly localized regime in two-dimensional systems will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-34067