Showing 1–1 of 1 results for author: Sun, Z H

Entanglement entropy of nuclear systems

Authors: Chenyi Gu, Z. H. Sun, G. Hagen, T. Papenbrock

Abstract: We study entanglement entropies between the single-particle states of the hole space and its complement in nuclear systems. Analytical results based on the coupled-cluster method show that entanglement entropies are proportional to the particle number fluctuation and the depletion number of the hole space for sufficiently weak interactions. General arguments also suggest that the entanglement entr… ▽ More We study entanglement entropies between the single-particle states of the hole space and its complement in nuclear systems. Analytical results based on the coupled-cluster method show that entanglement entropies are proportional to the particle number fluctuation and the depletion number of the hole space for sufficiently weak interactions. General arguments also suggest that the entanglement entropy in nuclear systems fulfills a volume instead of an area law. We test and confirm these results by computing entanglement entropies of the pairing model and neutron matter, and the depletion number of finite nuclei. △ Less

Submitted 8 March, 2023; originally announced March 2023.

Comments: 10 pages, 9 figures

Journal ref: Phys. Rev. C 108, 054309 (2023)