An efficient method for large scale configuration interaction calculations
β Scribed by Gerald A. Segal; Ross W. Wetmore
- Publisher
- Elsevier Science
- Year
- 1975
- Tongue
- English
- Weight
- 823 KB
- Volume
- 32
- Category
- Article
- ISSN
- 0009-2614
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β¦ Synopsis
An efficierit method of hkndlioglargc scale confguation interaction calculations is developed and-applied to the : fi2O.moiewIe as a test casti: The method, which is based upon matrix partitioning, is shown to be &pable of calculating "2 'Bt s~ctrum of H20 to ti accuracy level of 0.1 eV for each state with ve& mode& comp&atio+ effort.
π SIMILAR VOLUMES
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We show thar large-basis-se1 confiigurallon inleraction calculations includmg al1 single and double excltahons from n wmplctc-active-space optimized by MC SCF melhods recover an approlumatcly wnstant ktction of Ihe ealemal wrreladon energy. Therefore. by scakng this conlribution to the energy, more