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Implement FCI, CCSD, and NOCCD consistency test. #100

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haakoek opened this issue Sep 8, 2022 · 0 comments
Open

Implement FCI, CCSD, and NOCCD consistency test. #100

haakoek opened this issue Sep 8, 2022 · 0 comments
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haakoek commented Sep 8, 2022

For a two-particle system, (TD)CCSD and (TD)NOCCD/OA(TD)CCD should be equivalent, within a reasonable numerical threshold,
to (TD)FCI. Also, if I remember correctly, CCD is exact for the pairing model with N=2, and should therefore be equivalent to FCI/CID.
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@haakoek @Schoyen