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Hylleraas-configuration-interaction Study of the Singlet S Ground State of Neutral Beryllium
Published
Author(s)
James S. Sims, Stanley A. Hagstrom
Abstract
Hylleraas-configuration-interaction (Hy-CI) method variational calculations are reported for the singlet S ground state of neutral beryllium. The best nonrelativistic energy obtained was -14.6673 5641 hartree, which is estimated to be accurate to within a tenth of a microhartree. 1
Sims, J.
and Hagstrom, S.
(2011),
Hylleraas-configuration-interaction Study of the Singlet S Ground State of Neutral Beryllium, Physical Review A, [online], https://tsapps.nist.gov/publication/get_pdf.cfm?pub_id=907384
(Accessed October 7, 2025)