Stijn De BaerdemackerFaribault and collaborators succeed in deriving Richardson-Gaudin 2RDMs in the Eigenvalue-based formalism, *without* the need of computing rapidities .... removing an important bottleneck in Richardson-Gaudin Geminal theory
Reduced density matrices/static correlation functions of Richardson–Gaudin states without rapidities
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 of a model Hamilt...