Journal of Low Temperature Physics

, Volume 99, Issue 3–4, pp 325–327 | Cite as

Magnetic impurity in a luttinger liquid: A view from conformal field theory

  • Per Fröjdh
  • Henrik Johannesson
Magnetism

Abstract

Exact results are reported for the low-temperature thermodynamics of a spin-1/2 magnetic impurity coupled to a 1D interacting electron system. The use of conformal field theory techniques reveals that there are only two types of critical behaviors consistent with the symmetries of the problem: either a local Fermi liquid, or else a theory identical to that recently proposed by Furusaki and Nagaosa. We also show that forward electron scattering on the impurity produces the same critical behavior as the two-channel Kondo effect for noninteracting electrons.

PACS numbers

72.15N 72.15Q 75.30H 

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    A. Furusaki and N. Nagaosa, Phys. Rev. Lett.72, 892 (1994).Google Scholar
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    P. Fröjdh and H. Johannesson, in preparation.Google Scholar

Copyright information

© Plenum Publishing Corporation 1995

Authors and Affiliations

  • Per Fröjdh
    • 1
  • Henrik Johannesson
    • 1
    • 2
  1. 1.Department of Physics, FM-15University of WashingtonSeattleUSA
  2. 2.Institute of Theoretical PhysicsChalmers University of Technology and Göteborg UniversityGöteborgSweden

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