Numerical estimation of the β function in two-dimensional systems with spin-orbit coupling -: art. no. 035115

We report a numerical study of Anderson localization in a two-dimensional (2D) system of noninteracting electrons with spin-orbit coupling. We analyze the scaling of the renormalized localization length for the 2D SU(2) model and estimate its beta function over the full range from the localized to the metallic limits.