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Electron Correlations in Narrow Energy Bands. V. A Perturbation Expansion About the Atomic Limit

✍ Scribed by Hubbard, J.

Book ID: 120143134
Publisher: The Royal Society
Year: 1967
Tongue: English
Weight: 526 KB
Volume: 296
Category: Article
ISSN: 0962-8444
DOI: 10.1098/rspa.1967.0007

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We discuss a perturbation expansion about the atomic limit of the Hubbard model, i.e. the inter-atomic hopping of electrons is treated as a perturbation. Diagrammatic rules for the calculation of the Green's function of the d-dimensional Hubbard model are described. In the limit of high lattice dime