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Implications of Fumi’s theorem for auxiliary particle methods

S. E. Barnes
Phys. Rev. B 51, 10213(R) – Published 15 April 1995
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Abstract

Fumi’s theorem in conjunction with some general theorems associated with auxiliary particle methods dictates the functional form of the on-shell auxiliary particle self-energy Σ for a certain class of impurity scattering problems. An explicit calculation which confirms the result is described and the implications for various approaches to the Kondo effect discussed.

  • Received 27 December 1994

DOI:https://doi.org/10.1103/PhysRevB.51.10213

©1995 American Physical Society

Authors & Affiliations

S. E. Barnes

  • Department of Physics, University of Miami, Coral Gables, Florida 33124
  • Laboratoire de Magnétisme Louis Néel, Centre National de la Recherche Scientifique, Boîte Postale 166, 38042 Grenoble Cedex 9, France

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Issue

Vol. 51, Iss. 15 — 15 April 1995

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