Kondo Effect in a Luttinger Liquid: Exact Results from Conformal Field Theory
Condensed Matter
2009-10-28 v1
Abstract
We report on exact results for the low-temperature thermodynamics of a spin- magnetic impurity coupled to a one-dimensional interacting electron system. By using boundary conformal field theory, we show that there are only two types of critical behaviors consistent with the symmetries of the problem: {\em either} a local Fermi liquid, {\em or} a theory with an anomalous response identical to that recently proposed by Furusaki and Nagaosa. Suppression of back scattering off the impurity leads to the same critical properties as for the two-channel Kondo effect.
Keywords
Cite
@article{arxiv.cond-mat/9505100,
title = {Kondo Effect in a Luttinger Liquid: Exact Results from Conformal Field Theory},
author = {Per Frojdh and Henrik Johannesson},
journal= {arXiv preprint arXiv:cond-mat/9505100},
year = {2009}
}
Comments
9 pages, REVTeX, uses amsfonts, accepted for publication in Phys. Rev. Lett