Towards heavy-mass ab initio nuclear structure: Open-shell Ca, Ni and Sn isotopes from Bogoliubov coupled-cluster theory

Abstract

Recent developments in nuclear many-body theory enabled the description of open-shell medium-mass nuclei from first principles by exploiting the spontaneous breaking of symmetries within correlation expansion methods. Once combined with systematically improvable inter-nucleon interactions consistently derived from chiral effective field theory, modern ab initio nuclear structure calculations provide a powerful framework to deliver first-principle predictions accompanied with theoretical uncertainties. In this Letter, controlled ab initio Bogoliubov coupled cluster (BCC) calculations are performed for the first time, targeting the ground-state of all calcium, nickel and tin isotopes up to mass A ~ 180. While showing good agreement with available experimental data, the shell structure evolution in neutron-rich isotopes and the location of the neutron drip-lines are predicted. The BCC approach constitutes a key development towards reliable first-principles simulations of heavy-mass open-shell nuclei.

8 pages, 6 figures; published version

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Cited by in corpus (17)

• Improved structure of calcium isotopes from ab initio calculations
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• Spectroscopy of N=50 isotones with the valence-space density matrix renormalization group
• IMSRG with flowing 3 body operators, and approximations thereof
• Impact of correlations on nuclear binding energies
• Structure and dynamics of open-shell nuclei from spherical coupled-cluster theory
• Bayesian approach for many-body uncertainties in nuclear structure: Many-body perturbation theory for finite nuclei
• Symmetry-restored Skyrme-Random-Phase-Approximation calculations of the monopole strength in deformed nuclei
• Effective field theories for collective excitations of atomic nuclei
• Randomized Low-Rank Decompositions of Nuclear Three-Body Interactions
• Neutron-rich nuclei and neutron skins from chiral low-resolution interactions
• From closed shells to open shells: Coupled-cluster calculations of atomic nuclei
• Ab initio Bogoliubov many-body perturbation theory: closed-form constraint on the average particle number
• Exploring quark mass dependent three-nucleon forces in medium-mass nuclei
• Computational schemes for the Magnus expansion of the in-medium similarity renormalization group
• Ab initio calculations of nuclear charge radii across and beyond ${}^{132}$Sn: Putting chiral EFT nuclear interactions to the test
• Chiral interactions and superfluidity in the calcium isotopic chain