A weak entanglement approximation for nuclear structure: review and recent developments
Nuclear Theory
2025-09-17 v1
Abstract
The nuclear shell model is a useful and widely used tool for nuclear structure, but it can be hampered by the exponential growth of the basis. Drawing inspiration from quantum information theory, one can show that the proton and neutron components are typically weakly entangled. This has led to the Proton And Neutron Approximate Shell-model (PANASh). I review the underlying ideas and present recent developments. In particular I show how PANASh can accelerate beyond-mean-field methods such as the generator coordinate method.
Cite
@article{arxiv.2509.12549,
title = {A weak entanglement approximation for nuclear structure: review and recent developments},
author = {Calvin W. Johnson},
journal= {arXiv preprint arXiv:2509.12549},
year = {2025}
}
Comments
Contribution to 14th Spring School of Nuclear Physics, Ischia, Italy, May 2025. To appear in EPJA Web of Conferences