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arXiv · 2504.00273

A weak entanglement approximation for nuclear structure: a progress report

Calvin W. Johnson·Oliver C. Gorton
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Abstract

We report on a recently proposed approach, inspired by quantum informationtheory, for calculating low-energy nuclear structure in the framework of the configuration-interaction shell-model. Empirical evidence has demonstrated that the many-proton and many-neutron partitions of nuclear configuration-interaction wave functions are weakly entangled, especially away from $N=Z$. This has been developed into a practical methodology, the Proton And Neutron Approximate Shell-model (PANASh). We review the basic ideas and present recent results. We also discuss some technical developments in calculations.

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Calvin W. Johnson, Oliver C. Gorton. 2025-03-31. A weak entanglement approximation for nuclear structure: a progress report. https://arxiv.org/abs/2504.00273

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