Variations of the Hartree–Fock fractional-spin error for one electron

Fractional-spin errors are inherent in all current approximate density functionals, including Hartree–Fock theory, and their origin has been related to strong static correlation effects. The conventional way to encode fractional-spin calculations is to construct an ensemble density that scales betwe...

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Bibliographic Details
Main Authors: Burton, HGA, Marut, C, Daas, TJ, Gori-Giorgi, P, Loos, P-F
Format: Journal article
Language:English
Published: AIP Publishing 2021