Authors: Vieri Mastropietro
Conductivity between Luttinger liquids: coupled chains and bilayer
Abstract: The conductivity properties between Luttinger liquids are analyzed by exact Renormalization Group methods. We prove that in a two chain system or in a model of bilayer graphene, described by two coupled fermionic honeycomb lattices interacting with a gauge eld, the transverse optical conductivity at nite temperature is anomalous and decreasing together with the frequency as a power law with Luttinger liquid exponent.
Keywords: Lattice fermions, two-chains model, Renormalization Group, Drude weight, conductivity, Anderson confinement.Vieri Mastropietro