ENHANCED LOCAL MOMENT FORMATION IN A CHIRAL LUTTINGER LIQUID

We derive here a stability condition for a local moment in the presenc e of an interacting sea of conduction electrons. The conduction electr ons are modeled as a Luttinger liquid in which chirality and spin are coupled. We show that an Anderson U defect in such an interacting syst em can be transformed onto a nearly Fermi-liquid problem. We find that correlations among the conduction electrons stabilize the local momen t phase. A Schrieffer-Wolff transformation is then performed which res ults in an anisotropic exchange interaction indicative of the Kondo ef fect in a Luttinger liquid. The ground-state properties of this model are then equivalent to those of the Kondo model in a Luttinger liquid.