Quantum kinetic equation and universal conductance fluctuations in graphene

K. Kechedzhi, O. Kashuba, Vladimir I. Fal'ko

Published 2008-01-15, updated 2008-01-30Version 3

We analyze universal conductance fluctuations (UCF) in graphene in the framework of diagrammatic perturbation theory in the metallic regime. It is shown that strong inter-valley scattering lifts the valley degeneracy of electronic states, whereas at weak inter-valley scattering two valleys contribute independently such that the variance of UCF would be expected to show sample- and geometry-dependent behavior.