Perturbative corrections for Hartree-Fock-like Algebraic Bethe Ansatz analogue
Rayleigh Schrödinger perturbation theory corrections are developed for an algebraic Bethe ansatz of individual electrons. Numerical results are ambiguous and would need either an orbital optimization or a configuration interaction singles solution to be satisfactory. Two different expressions are computed to be certain that results are correct.
physics.chem-ph↗