Tunneling exponents in realistic quantum wires using the mean field approximation

Wolfgang Häusler, A. H. MacDonald

Published 2003-06-25Version 1

It is demonstrated that the charge Tomonaga-Luttinger parameter $K_\rho$ of quantum wires can be estimated accurately using the Hartree-Fock approximation if carried out self consistently. The dependence of $K_\rho$ on the carrier density distinguishes different regimes of importance of correlations.