Two-scale analysis of the SU(N) Kondo Model
arXiv:cond-mat/9912414 · doi:10.1103/PhysRevLett.85.804
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