Fully-Renormalized QRPA fulfills Ikeda sum rule exactly
arXiv:nucl-th/0205072 · doi:10.1103/PhysRevC.66.051303
Abstract
The renormalized quasiparticle-RPA is reformulated for even-even nuclei using restrictions imposed by the commutativity of the phonon creation operator with the total particle number operator. This new version, Fully-Renormalized QRPA (FR-QRPA), is free from the spurious low-energy solutions. Analytical proof is given that the Ikeda sum rule is fullfiled within the FR-QRPA.
9 pages