Variational localized-site cluster expansions. IX. Many-body valence-bond theory
- 15 January 1979
- journal article
- research article
- Published by American Physical Society (APS) in Physical Review B
- Vol. 19 (2) , 870-876
- https://doi.org/10.1103/physrevb.19.870
Abstract
A cluster-expansion approach to constructing valence-bond wave functions is described, such that calculations even on many-body systems are possible. In addition, the valence-bond idea of electron pairing is extended to site pairing, or site coupling, even though the sites may involve many electrons and be of a higher spin multiplicity.Keywords
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