Corpus ID: 118326394

Kondo lattice model: from local to non-local descriptions

  title={Kondo lattice model: from local to non-local descriptions},
  author={Gang Li},
  journal={arXiv: Strongly Correlated Electrons},
  • Gang Li
  • Published 31 August 2013
  • Physics
  • arXiv: Strongly Correlated Electrons
In this paper, we study the influence of spatial fluctuations in a two-dimentional Kondo-Lattice model (KLM) with anti-ferromagnetic couplings. To accomplish this, we first present an implementation of the dual-fermion (DF) approach based on the hybridization expansion continuous-time quantum Monte Carlo impurity solver (CT-HYB), which allows us to consistently compare the local and non-local descriptions of this model. We find that, the inclusion of non-locality restores the self-energy… Expand
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