Bose-Fermi Kondo model with Ising anisotropy: cluster-Monte Carlo approach

Details Bose-Fermi Kondo model with Ising anisotropy: cluster-Monte Carlo approach Bose-Fermi Kondo model with Ising anisotropy: cluster-Monte Carlo approach

2007-11-26

arxiv.org/abs/0711.3826v1

Physica B (2007)

Physics

Condensed Matter

Strongly Correlated Electrons

2 pages, 2 figures, to appear in the proceedings of SCES 07 (the international conference on strongly correlated electron syst

Scientific paper

10.1016/j.physb.2007.10.298

The Bose-Fermi Kondo model captures the physics of the destruction of Kondo screening, which is of extensive current interest to the understanding of quantum critical heavy fermion metals. There are presently limited theoretical methods to study the finite temperature properties of the Bose-Fermi Kondo model. Here we provide some of the consistency checks on the cluster-Monte Carlo method, which we have recently applied to the Ising-anisotropic Bose-Fermi Kondo model. We show that the method correctly captures the scaling properties of the Kondo phase, as well as those on approach to the Kondo-destroying quantum critical point. We establish that comparable results are obtained when the Kondo couplings are placed at or away from a Toulouse point.

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