Numerical algorithm for the standard pairing problem based on the Heine–Stieltjes correspondence and the polynomial approach

Title of program: exactPairingHS Catalogue Id: AETD_v1_0 Nature of problem The program calculates exact pairing energies based on the Heine-Stieltjes polynomial approach. Existing conventional exact-pairing approaches require solving systems of highly nonlinear equations, which are difficult and often impossible to solve beyond the simplest of the quantum-mechanical many-particle systems. In this study, the Heine-Stieltjes polynomial approach is employed to provide solutions for more than one or two pairs of particles residing in many energy levels.

Versions of this program held in the CPC repository in Mendeley Data AETD_v1_0; exactPairingHS; 10.1016/j.cpc.2014.05.023 This program has been imported from the CPC Program Library held at Queen's University Belfast (1969-2018)