Numerical renormalization-group study of the Bose-Fermi Kondo model

Details Numerical renormalization-group study of the Bose-Fermi Kondo model Numerical renormalization-group study of the Bose-Fermi Kondo model

2005-01-25

arxiv.org/abs/cond-mat/0501601v2

Phys. Rev. Lett., Vol. 95, 67202 (2005)

Physics

Condensed Matter

Strongly Correlated Electrons

4 pages, 4 figures

Scientific paper

10.1103/PhysRevLett.95.067202

We extend the numerical renormalization-group method to Bose-Fermi Kondo models (BFKMs), describing a local moment coupled to a conduction band and a dissipative bosonic bath. We apply the method to the Ising-symmetry BFKM with a bosonic bath spectral function $\eta(\omega)\propto \omega^s$, of interest in connection with heavy-fermion criticality. For $0

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