most citedConverging Many-Body Perturbation Theory for Ab Initio Nuclear Structure: II. Brillouin-Wigner Perturbation Series for Open-Shell Nuclei

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nucl-th2024★ 1 cited

Converging Many-Body Perturbation Theory for Ab Initio Nuclear Structure: II. Brillouin-Wigner Perturbation Series for Open-Shell Nuclei

Zhen Li, Nadezda A. Smirnova

Brillouin-Wigner (BW) perturbation theory is developed for both ground and excited states of open-shell nuclei. We show that with optimal partitioning of the many-body Hamiltonian…

nucl-th2023

Converging Many-Body Perturbation Theory for Ab Initio Nuclear-Structure: I. Brillouin-Wigner Perturbation Series for Closed-Shell Nuclei

Zhen Li, Nadezda A. Smirnova

Convergence aspects of nuclear many-body perturbation theory for ground states of closed-shell nuclei are explored using a Brillouin-Wigner formulation with a new vertex function e…