Convergence of density-matrix expansions for nuclear interactions
Nuclear Theory
2011-04-19 v1 Mesoscale and Nanoscale Physics
Abstract
We extend density-matrix expansions in nuclei to higher orders in derivatives of densities and test their convergence properties. The expansions allow for converting the interaction energies characteristic to finite- and short-range nuclear effective forces into quasi-local density functionals. We also propose a new type of expansion that has excellent convergence properties when benchmarked against the binding energies obtained for the Gogny interaction.
Cite
@article{arxiv.1003.2543,
title = {Convergence of density-matrix expansions for nuclear interactions},
author = {B. G. Carlsson and J. Dobaczewski},
journal= {arXiv preprint arXiv:1003.2543},
year = {2011}
}
Comments
4 pages, 3 figures