Natural orbital description of the halo nucleus 6He
Nuclear Theory
2018-02-07 v2
Abstract
Ab initio calculations of nuclei face the challenge of simultaneously describing strong short-range internucleon correlations and the long-range properties of weakly-bound halo nucleons. Natural orbitals, which diagonalize the one-body density matrix, provide a basis which is better matched to the physical structure of the many-body wave function. We demonstrate that the use of natural orbitals significantly improves convergence for ab initio no-core configuration interaction calculations of the neutron halo nucleus 6He, relative to the traditional oscillator basis.
Keywords
Cite
@article{arxiv.1605.04976,
title = {Natural orbital description of the halo nucleus 6He},
author = {Ch. Constantinou and M. A. Caprio and J. P. Vary and P. Maris},
journal= {arXiv preprint arXiv:1605.04976},
year = {2018}
}
Comments
6 pages, 4 figures; presented at the Symposium on Nuclear Dynamics and Thermodynamics, Huizhou, China, December 11, 2016; as published in Nucl. Sci. Tech