Symmetry-adapted perturbation theory (source code)

= Symmetry-adapted perturbation theory
{wiki=Symmetry-adapted_perturbation_theory}

Symmetry-adapted perturbation theory (SAPT) is a quantum mechanical method used to analyze and calculate intermolecular interactions, particularly in the context of many-body systems. It combines elements of perturbation theory with the principles of symmetry, allowing for a more tractable treatment of the electronic interactions between molecules.