1995/04/11 by R. Egger, M. Sassetti, U. Weiss
Physics and Astronomy · #cond-mat
published as unpublished (but see 9509150) · Four (4) pages RevTeX
arxiv created 1995/04/11 · arxiv updated 2009/11/30
Transport properties of a single-channel Luttinger liquid impinging on a barrier have been studied for g=1/2 - ε, where g is the dimensionless interaction constant and |ε| ≪ 1. The relevant diagrams contributing to the conductance are identified and evaluated in all orders. Our approach represents a leading-log summation which is valid for sufficiently low temperature and small voltage. The asymptotic low-temperature corrections exhibit a turnover from the T2/g-2 behavior to a universal T2 law as the voltage is increased.