2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/163801Motivated by recent graphene transport experiments, we have undertaken a numerical study of the conductivity of disordered two-dimensional massless Dirac fermions. Our results reveal distinct differences between the cases of short-range and Coulomb randomly distributed scatterers. We speculate that this behavior is related to the Boltzmann transport theory prediction of dirty-limit behavior for Coulomb scatterers.4 pages, 1 figureMesoscale and Nanoscale Physicstext