Second-order many-body perturbation theory for the any particle molecular orbital method in the framework of Hartree products of localized wave functions
This paper presents an alternative second-order many-body perturbation theory (MBPT(2)) for the Any Particle Molecular Orbital (APMO) method. Here, the reference wave function was constructed as a product of Slater determinants for light species (e.g., electrons) and Hartree products of localized orbitals for heavy spe...