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The energy-scale-dependent composite operator method for the single-impurity Anderson model

✍ Scribed by A. Avella; F. Mancini; R. Hayn


Book ID
111620996
Publisher
Springer
Year
2004
Tongue
English
Weight
397 KB
Volume
37
Category
Article
ISSN
1434-6036

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πŸ“œ SIMILAR VOLUMES


SCBA within composite operator method fo
✍ S. Krivenko; A. Avella; F. Mancini; N. Plakida πŸ“‚ Article πŸ“… 2005 πŸ› Elsevier Science 🌐 English βš– 202 KB

We study the self-energy corrections to a 2-pole projection scheme for the Hubbard model by means of the self-consistent Born approximation, truncated to the first order, within the composite operator method. The bosonic Green's functions (spin and charge propagators), appearing in the mode-coupling