24 citations · 47 across the 5 of their papers we have counts for
5 papers
Singlet Geminal Wavefunctions
Paul A. Johnson, Jean-David Moisset, Marianne Gratton +8
Wavefunction forms based on products of electron pairs are usually constructed as closed-shell singlets, which is insufficient when the molecular state has a nonzero spin or when t…
Reduced Density Matrices / Static Correlation Functions of Richardson-Gaudin States Without Rapidities
Alexandre Faribault, Claude Dimo, Jean-David Moisset +1
Seniority-zero geminal wavefunctions are known to capture bond-breaking correlation. Among this class of wavefunctions, Richardson-Gaudin states stand out as they are eigenvectors…
Near-exact treatment of seniority-zero ground and excited states with a Richardson-Gaudin mean-field
Charles-Émile Fecteau, Samuel Cloutier, Jean-David Moisset +4
Eigenvectors of the reduced Bardeen-Cooper-Schrieffer Hamiltonian, Richardson-Gaudin (RG) states, are used as a variational wavefunction Ansatz for strongly-correlated electronic s…
Density Matrices of Seniority-Zero Geminal Wavefunctions
Jean-David Moisset, Charles-Émile Fecteau, Paul A. Johnson
Scalar products and density matrix elements of closed-shell pair geminal wavefunctions are evaluated directly in terms of the pair amplitudes, resulting in an analogue of Wick's th…
Perturbative corrections for Hartree-Fock-like Algebraic Bethe Ansatz analogue
Jean-David Moisset, Laurie Carrier, Paul A. Johnson
Rayleigh Schrödinger perturbation theory corrections are developed for an algebraic Bethe ansatz of individual electrons. Numerical results are ambiguous and would need either an o…