Related papers: Entanglement entropy of nuclear systems

Entanglement entropy of nuclear systems

URL: http://arxiv.org/abs/2303.04799v1
Date: Wed, 8 Mar 2023 18:48:43 GMT
Title: Entanglement entropy of nuclear systems
Authors: Chenyi Gu, Z. H. Sun, G. Hagen, T. Papenbrock
Abstract summary: We study entanglement entropies between the single-particle states of the hole space and its complement in nuclear systems. We show that entanglement entropies are proportional to the particle number fluctuation and the depletion number of the hole space for sufficiently weak interactions.
Score: 0.0
License: http://creativecommons.org/licenses/by/4.0/
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 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.

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