The hyperspherical harmonics method: a tool for testing and improving nuclear interaction models

LE Marcucci, J Dohet-Eraly, L Girlanda, A Gnech… - Frontiers in …, 2020 - frontiersin.org
The Hyperspherical Harmonics (HH) method is one of the most accurate techniques to solve
the quantum mechanical problem for nuclear systems with a number of nucleons A≤ 4. In …

Calculation of the ground state within the hyperspherical harmonic basis

A Gnech, M Viviani, LE Marcucci - Physical Review C, 2020 - APS
We have studied the solution of the six-nucleon bound state problem using the
hyperspherical harmonic (HH) approach. For this study we have considered only two-body …

A numerical algorithm for solving the coupled Schrödinger equations using inverse power method

J Zhao, S Shi - Computer Physics Communications, 2024 - Elsevier
The inverse power method is a numerical algorithm to obtain the eigenvectors of a matrix. In
this work, we develop an iteration algorithm, based on the inverse power method, to …

Hyperspherical cluster model for bosons: application to sub-threshold halo states in helium drops

NK Timofeyuk - Few-Body Systems, 2023 - Springer
To describe long-range behaviour of one particle removed from a few-or a many-body
system, a hyperspherical cluster model has been developed. It has been applied to the …

Computation and analysis of bound vibrational spectra of the neon tetramer using row orthonormal hyperspherical coordinates

B Lepetit - The Journal of Chemical Physics, 2020 - pubs.aip.org
This paper presents the first implementation of the row-orthonormal hyperspherical
coordinate formalism for the computation of the vibrational spectrum of a tetratomic system …

Theoretical calculation of nuclear reactions of interest for Big Bang Nucleosynthesis

A Gnech - arXiv preprint arXiv:2012.08431, 2020 - arxiv.org
Standard Big Bang Nucleosynthesis (BBN) predicts the abundances of the light elements in
the early universe. Even if the overall agreement with the experimental data is good, still …