Implementing the SAAP Formalism. I. Serber-Type Spin Eigenfunctions by Direct Diagonalization
William Irwin Salmon, Klaus Ruedenberg, Lap Ming Cheung · The Journal of Chemical Physics · 1972
A method is given for generating Serber-type spin eigenfunctions for use in expansions of general electronic wavefunctions in terms of spin-adapted antisymmetrized products (SAAP's). The procedure is efficient and avoids the large storage requirements of spin-coupling schemes using Wigner coefficients. Running times of computer programs are given.