Spectral properties of a narrow-band Anderson model
We consider single-particle spectra of a symmetric narrow-band Anderson impurity model, where the host bandwidth D is small compared to the hybridization strength Δ0. Simple second-order perturbation theory (2PT) in U is found to produce a rich spectral structure that leads to rather good agreement...
| Main Authors: | , |
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| Format: | Journal article |
| Language: | English |
| Published: |
2001
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