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View article: Pion-less effective field theory for atomic nuclei and lattice nuclei
Pion-less effective field theory for atomic nuclei and lattice nuclei Open
We compute the medium-mass nuclei $^{16}$O and $^{40}$Ca using pionless\neffective field theory (EFT) at next-to-leading order (NLO). The low-energy\ncoefficients of the EFT Hamiltonian are adjusted to experimantal data for\nnuclei with ma…
View article: Few-nucleon and many-nucleon systems with semilocal coordinate-space regularized chiral nucleon-nucleon forces
Few-nucleon and many-nucleon systems with semilocal coordinate-space regularized chiral nucleon-nucleon forces Open
We employ a variety of ab initio methods, including Faddeev-Yakubovsky equations, no-core configuration interaction approach, coupled-cluster theory, and in-medium similarity renormalization group, to perform a comprehensive analysis of th…
View article: Effective field theory in the harmonic oscillator basis
Effective field theory in the harmonic oscillator basis Open
We develop interactions from chiral effective field theory (EFT) that are\ntailored to the harmonic oscillator basis. As a consequence, ultraviolet\nconvergence with respect to the model space is implemented by construction and\ninfrared c…
View article: Few-nucleon systems with state-of-the-art chiral nucleon-nucleon forces
Few-nucleon systems with state-of-the-art chiral nucleon-nucleon forces Open
We apply improved nucleon-nucleon potentials up to fifth order in chiral effective field theory, along with a new analysis of the theoretical truncation errors to study nucleon-deuteron (Nd) scattering and selected low-energy observables i…
View article: Hartree–Fock many-body perturbation theory for nuclear ground-states
Hartree–Fock many-body perturbation theory for nuclear ground-states Open
We investigate the order-by-order convergence behavior of many-body perturbation theory (MBPT) as a simple and efficient tool to approximate the ground-state energy of closed-shell nuclei. To address the convergence properties directly, we…
View article: Ab Initio No Core Shell Model - Recent Results and Further Prospects
Ab Initio No Core Shell Model - Recent Results and Further Prospects Open
There has been significant recent progress in solving the long-standing problems of how nuclear shell structure and collective motion emerge from underlying microscopic inter-nucleon interactions. We review a selection of recent significan…