Irreducible tensor form of three-particle operator for open-shell atoms
Irreducible tensor form of three-particle operator for open-shell atoms
Abstract A three-particle operator in a second quantized form is studied systematically and comprehensively. The operator is transformed into irreducible tensor form. Possible coupling schemes, identified by the classes of symmetric group S6, are presented. Recoupling coefficients that make it possible to transform a given scheme into another are produced …