We construct effective two-body Hamiltonians and E 2 operators for the p shell by performing
16 ℏ Ω ab initio no-core shell model (NCSM) calculations for A= 5 and A= 6 nuclei and …

We implement an effective operator formalism for general one-and two-body operators,
obtaining results consistent with the no-core shell model (NCSM) wave functions. The …

We explore the impact of optimizations of the single-particle basis on the convergence
behavior and robustness of ab initio no-core shell model calculations of nuclei. Our focus is …

We construct effective two-and three-body Hamiltonians for the p-shell by performing 12 ℏ Ω
ab initio no-core shell model (NCSM) calculations for A= 6 and 7 nuclei and explicitly …

The nuclear many-body problem for medium-mass systems is commonly addressed using
wave-function expansion methods that build upon a second-quantized representation of …

Nuclear many-body calculations are computationally demanding. An estimate of their
accuracy is often hampered by the limited amount of computational resources even on …

We use a large-scale 6 ħ Ω calculation for 6 Li with microscopically derived two-body
interaction to construct the 0 ħ Ω 0 p shell effective Hamiltonian, electric quadrupole, and …

First self-consistent realistic shell-model calculation for the light p-shell nuclei is performed,
starting from the high-precision nucleon–nucleon (NN) CD-Bonn potential. This realistic …

We present a nonperturbative derivation of effective valence-shell Hamiltonians in the
framework of the re-cently developed in-medium similarity renormalization group (IM-SRG) …

We propose an importance truncation scheme for no-core shell model or configuration
interaction approaches, which enables converged calculations for nuclei well beyond the p …