Fermi edge singularity in the SU (N) Wolff model

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The low-temperature properties of the SU (N) Wolff impurity model are studied via Abelian bosonization. The path integral treatment of the problem allows for an exact evaluation of low-temperature properties of the model. The single-particle Green's function is enhanced due to the presence of local correlation. The basic correlation functions such as the charge or spin correlator are also influenced by the presence of impurity, and show local Fermi liquid behavior. The x-ray absorption is affected by the presence of the local Hubbard interaction. The exponent is decreased (increased) for repulsive (attractive) interactions.

Original languageEnglish
Article number125113
JournalPhysical Review B - Condensed Matter and Materials Physics
Issue number12
Publication statusPublished - Mar 31 2006

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics

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