Comment on "Ab Initio study of 40-Ca with an importance-truncated no-core shell model"
Nuclear Theory
2009-11-13 v1
Abstract
In a recent Letter [Phys. Rev. Lett. 99, 092501 (2007)], Roth and Navratil present an importance-truncation scheme for the no-core shell model. The authors claim that their truncation scheme leads to converged results for the ground state of 40-Ca. We believe that this conclusion cannot be drawn from the results presented in the Letter. Furthermore, the claimed convergence is at variance with expectations of many-body theory. In particular, coupled-cluster calculations indicate that a significant fraction of the correlation energy is missing.
Keywords
Cite
@article{arxiv.0709.0449,
title = {Comment on "Ab Initio study of 40-Ca with an importance-truncated no-core shell model"},
author = {D. J. Dean and G. Hagen and M. Hjorth-Jensen and T. Papenbrock and A. Schwenk},
journal= {arXiv preprint arXiv:0709.0449},
year = {2009}
}
Comments
1 page, comment on arXiv:0705.4069 (PRL 99, 092501 (2007))