State-of-the-art techniques for calculating spectral functions in models for correlated materials

@article{Hallberg2015StateoftheartTF,
  title={State-of-the-art techniques for calculating spectral functions in models for correlated materials},
  author={K. Hallberg and D. J. Garc'ia and P. S. Cornaglia and J. I. Facio and Y. N'unez-Fern'andez},
  journal={arXiv: Strongly Correlated Electrons},
  year={2015}
}
The dynamical mean field theory (DMFT) has become a standard technique for the study of strongly correlated models and materials overcoming some of the limitations of density functional approaches based on local approximations. An important step in this method involves the calculation of response functions of a multiorbital impurity problem which is related to the original model. Recently there has been considerable progress in the development of techniques based on the density matrix… Expand

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