Cumulant expansion of the periodic Anderson model in infinite dimensions

@article{Foglio1997CumulantEO,
title={Cumulant expansion of the periodic Anderson model in infinite dimensions},
author={Mario E. Foglio and M. S. Figueira},
journal={Journal of Physics A},
year={1997},
volume={30},
pages={7879-7894}
}
• Published 4 August 1997
• Physics, Mathematics
• Journal of Physics A
The diagrammatic cumulant expansion for the periodic Anderson model with infinite Coulomb repulsion is considered here for an hypercubic lattice of infinite dimension . The nearest neighbour hopping of the uncorrelated electrons is described exactly by a conduction band, while two different models of hybridization are treated as a perturbation. The same type of simplifications obtained by Metzner for the cumulant expansion of the Hubbard model in the limit of , are also shown to be valid for…
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