Nucleus-Dependent Valence-Space Approach to Nuclear Structure
Nucleus-Dependent Valence-Space Approach to Nuclear Structure
We present a nucleus-dependent valence-space approach for calculating ground and excited states of nuclei, which generalizes the shell-model in-medium similarity renormalization group to an ensemble reference with fractionally filled orbitals. Because the ensemble is used only as a reference, and not to represent physical states, no symmetry restoration is required. …