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Fully-Renormalized QRPA fulfills Ikeda sum rule exactly

Vadim Rodin·Amand Faessler
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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.

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Vadim Rodin, Amand Faessler. 2002-08-30. Fully-Renormalized QRPA fulfills Ikeda sum rule exactly. https://doi.org/10.1103/physrevc.66.051303

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