Universal Conductance Distribution in the Quantum Size Regime
Condensed Matter
2009-10-22 v1
Abstract
We study the conductance (g) distribution function of an ensemble of isolated conducting rings, with an Aharonov--Bohm flux. This is done in the discrete spectrum limit, i.e., when the inelastic rate, frequency and temperature are all smaller than the mean level spacing. Over a wide range of g the distribution function exhibits universal behavior P(g)\sim g^{-(4+\beta)/3}, where \beta=1 (2) for systems with (without) a time reversal symmetry. The nonuniversal large g tail of this distribution determines the values of high moments.
Cite
@article{arxiv.cond-mat/9406057,
title = {Universal Conductance Distribution in the Quantum Size Regime},
author = {Alex Kamenev and Yuval Gefen},
journal= {arXiv preprint arXiv:cond-mat/9406057},
year = {2009}
}
Comments
13 pages+1 figure, RevTEX 3