학술논문
Coupled-cluster theory for strong entanglement in nuclei
Document Type
Working Paper
Author
Source
Phys. Rev C. 108, 014307 (2023)
Subject
Language
Abstract
Atomic nuclei can exhibit shape coexistence and multi-reference physics that enters in their ground states, and to accurately capture the ensuing correlations and entanglement is challenging. We address this problem by applying single-reference coupled-cluster theory based on spherical and deformed reference states and the tailored coupled-cluster method. The latter combines configuration interaction to capture static correlations with coupled-cluster theory for dynamic correlations. We compute the atomic nuclei $^{12}$C, $^{28}$Si, and $^{56}$Ni and find that the tailored coupled-cluster method and the single-reference approach based on a deformed Hartree-Fock state yield the most accurate results.
Comment: 11 pages, 8 figures
Comment: 11 pages, 8 figures