Möbius transformations and electronic transport properties of large disorderless networks

Yu Jiang, M. Martínez-Mares, E. Castaño, A. Robledo

Published 2011-04-14, updated 2012-07-11Version 2

We show that the key transport states, insulating and conducting, of large regular networks of scatterers can be described generically by negative and zero Lyapunov exponents, respectively, of M\"obius maps that relate the scattering matrix of systems with successive sizes. The conductive phase is represented by weakly chaotic attractors that have been linked with anomalous transport and ergodicity breaking. Our conclusions, verified for serial as well as parallel stub and ring structures, reveal that mesoscopic behavior results from a drastic reduction of degrees of freedom.