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

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.

4 RevTeX pages, 3 embedded EPS figures

References in corpus (3)

• The Hubbard model in the two-pole approximation
• Compressibility of the Two-Dimensional infinite-U Hubbard Model
• Conservation of the spectral moments in the n-pole approximation

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