Abstract
A survey is given of the background and development of the unitary group approach and its graphically-based implementations for electronic structure calculations. The nature of the unitary group and its relationship to the electronic many-body problem are briefly discussed, as well as the reasons, purpose, and methodology of its application to this problem. As much as possible, this discussion is on a mostly intuitive, non-technical level. Finally, recent accomplishments and expected future developments are briefly mentioned.
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Shavitt, I. (1983). The Unitary Group and the Electron Correlation Problem. In: Löwdin, PO., Pullman, B. (eds) New Horizons of Quantum Chemistry. International Academy of Quantum Molecular Science, vol 4. Springer, Dordrecht. https://doi.org/10.1007/978-94-009-7950-5_18
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DOI: https://doi.org/10.1007/978-94-009-7950-5_18
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