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Two-scale analysis of the SU(N) Kondo Model

D. Villani·E. Lange·A. Avella·G. Kotliar
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Abstract

We show how to resolve coherent low-energy features embedded in a broad high-energy background by use of a fully self-consistent calculation for composite particle operators. The method generalizes the formulation of Roth, which linearizes the dynamics of composite operators at any energy scale. Self-consistent equations are derived and analyzed in the case of the single-impurity SU(N) Kondo model.

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D. Villani, E. Lange, A. Avella, G. Kotliar. 1999-12-22. Two-scale analysis of the SU(N) Kondo Model. https://doi.org/10.1103/physrevlett.85.804

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