P. Navratil et Br. Barrett, SOLUBLE MODEL TEST OF THE MULTIVALUED G-MATRIX EFFECTIVE INTERACTION, Physics letters. Section B, 369(3-4), 1996, pp. 193-200
The recently proposed multi-valued G-matrix effective interaction is t
ested in a soluble multi-level monopole-pairing interaction model. To
mimic the no-core shell model approach, different effective interactio
ns including the multi-valued G-matrix are calculated in a two-particl
e space and subsequently applied for the many-particle calculation. Th
e multi-valued G-matrix effective interaction, both starting energy de
pendent and starting energy independent, is shown to be superior to th
e single-valued G-matrix. The formalism is extended to effective opera
tors, where a similar conclusion is found.