Accuracy of the HF energy of 3-ballium with respect to basis set size . TA results taken from Ref. 21 and LG from the present study.
Accuracy of the exact energy of 3-ballium with respect to the basis set size for various . TA results taken from Ref. 16, JA from Ref. 17 and LG from the present study.
HF and exact energies of 3-ballium for , 5, and 20.
Exact, HF, and correlation energies for various finite . Zeroth-order, first-order, and second-order energies, and limiting correlation energies.
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