3 papers
nucl-th2025
Robust ab initio predictions for dimensionless ratios of E2 and radius observables. I. Electric quadrupole moments and deformation
Mark A. Caprio, Pieter Maris, Patrick J. Fasano
Converged results for E2 observables are notoriously challenging to obtain in ab initio no-core configuration interaction (NCCI) approaches. Matrix elements of the E2 operator are…
nucl-th2024
Direct ab initio calculation of the He nuclear electric dipole polarizability
Peng Yin, Andrey M. Shirokov, Pieter Maris +5
The calculation of nuclear electromagnetic sum rules by directly diagonalizing the nuclear Hamiltonian in a large basis is numerically challenging and has not been performed for $A…
physics.comp-ph2024
Accelerating Eigenvalue Computation for Nuclear Structure Calculations via Perturbative Corrections
Dong Min Roh, Esmond Ng, Chao Yang +3
We present a new method for computing the lowest few eigenvalues and the corresponding eigenvectors of a nuclear many-body Hamiltonian represented in a truncated configuration inte…