Abstract
Employing a Hilbert space ansatz the multireference, coupled-cluster single and double (MRCCSD) excitation equations are derived and presented in a transparent diagrammatic form for a complete active multireference space. All possible excitation levels are considered to be in the complete active space through hextuples, for which the MRCCSD equations are shown to be complete. The equations apply for open- and closed-shell cases.
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Dates
Type | When |
---|---|
Created | 23 years, 1 month ago (July 26, 2002, 8:20 a.m.) |
Deposited | 1 year, 6 months ago (Feb. 10, 2024, 8:55 a.m.) |
Indexed | 3 weeks, 1 day ago (Aug. 6, 2025, 8:22 a.m.) |
Issued | 33 years, 8 months ago (Dec. 1, 1991) |
Published | 33 years, 8 months ago (Dec. 1, 1991) |
Published Print | 33 years, 8 months ago (Dec. 1, 1991) |
@article{Kucharski_1991, title={Hilbert space multireference coupled-cluster methods. I. The single and double excitation model}, volume={95}, ISSN={1089-7690}, url={http://dx.doi.org/10.1063/1.461301}, DOI={10.1063/1.461301}, number={11}, journal={The Journal of Chemical Physics}, publisher={AIP Publishing}, author={Kucharski, Stanislaw A. and Bartlett, Rodney J.}, year={1991}, month=dec, pages={8227–8238} }