Exact critical theory of the two-impurity Kondo model

  • Affleck I
  • Ludwig A
  • 23


    Mendeley users who have this article in their library.
  • 141


    Citations of this article.


The two-impurity Kondo Hamiltonian is known to possess a multicritical point separating stable Fermi-liquid phases in which the two impurities either form a singlet or else are screened by the conduction electrons. We propose an exact critical theory for this non-Fermi-liquid multicritical point, using conformal field theory methods, which predicts all critical properties including the finite-size spectrum, specific heat, susceptibilities, renormalization-group behavior, residual entropy, scattering matrix, and local pair Green's function.

Get free article suggestions today

Mendeley saves you time finding and organizing research

Sign up here
Already have an account ?Sign in

Find this document


  • Ian Affleck

  • Andreas W.W. Ludwig

Cite this document

Choose a citation style from the tabs below

Save time finding and organizing research with Mendeley

Sign up for free