Disorder-induced transport properties in Weyl semimetals

We study the transport properties of Weyl semimetals in the presence of generic disorder. We propose a discretization scheme of the Weyl Hamiltonian that avoids the fermion doubling problem and allows to include an external magnetic field, making possible a direct calculation of spectral and magnetotransport properties. We show the efficiency of the method by calculating the density of states near the Weyl point and of quantum transport properties at the Weyl point in a variety of situations and comparing with the literature results. We consider external magnetic fields to study the effect of disorder in the magnetoconductivity near a Weyl node, analysing the possibility of a disorder-induced phase transition from a pseudo-ballistic to a diffusive regime.