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Elementary Excitations for Impurity Models

  • A. Okiji
  • S. Suga
  • M. Yamashita
  • N. Kawakami
Part of the Springer Series in Solid-State Sciences book series (SSSOL, volume 118)

Abstract

Elementary excitations for impurity models are investigated with the use of the Bethe-Ansatz solution. We study three kinds of Hamiltonians concerning the Kondo problem: the ordinary Anderson model, the orbitally degenerate Anderson model and the multi-channel Kondo model. The calculations for the multi-channel Kondo model are further extended to the case at finite temperatures by means of Yang and Yang’s method developed in one-dimensional interacting boson systems.

Keywords

Excitation Spectrum Impurity Model Anderson Model Elementary Excitation Spin Excitation 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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Copyright information

© Springer-Verlag Berlin Heidelberg 1994

Authors and Affiliations

  • A. Okiji
    • 1
  • S. Suga
    • 1
  • M. Yamashita
    • 1
  • N. Kawakami
    • 2
  1. 1.Department of Applied PhysicsOsaka UniversitySuita, Osaka 565Japan
  2. 2.Yukawa Institute for Theoretical PhysicsKyoto UniversityKyoto 606Japan

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