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cond-mat.str-el2009
The atomic approach of the Anderson model for the U finite case: application to a quantum dot
T. Lobo, M. S. Figueira, M. E. Foglio
In the present work we apply the atomic approach to the single impurity Anderson model (SIAM). A general formulation of this approach, that can be applied both to the impurity and…
cond-mat.str-el2009★ 4 cited
Green's Functions for the Anderson model: the Atomic Approximation
M. E. Foglio, T. Lobo, M. S. Figueira
We consider the cumulant expansion of the PAM employing the hybridization as perturbation (Phys. Rev. B 50, 17933 (1994)), and we obtain formally exact one-electron Green's functio…