Feasibility of the finite amplitude method in covariant density functional theory
Nuclear Theory
2013-10-16 v1
Abstract
Self-consistent relativistic random-phase approximation (RPA) in the radial coordinate representation is established by using the finite amplitude method (FAM). Taking the isoscalar giant monopole resonance in spherical nuclei as example, the feasibility of the FAM for the covariant density functionals is demonstrated, and the newly developed methods are verified by the conventional RPA calculations. In the present relativistic RPA calculations, the effects of the Dirac sea can be automatically taken into account in the coordinate-space representation. The rearrangement terms due to the density-dependent couplings can be implicitly calculated without extra computational costs in both iterative and matrix FAM schemes.
Keywords
Cite
@article{arxiv.1304.3953,
title = {Feasibility of the finite amplitude method in covariant density functional theory},
author = {Haozhao Liang and Takashi Nakatsukasa and Zhongming Niu and Jie Meng},
journal= {arXiv preprint arXiv:1304.3953},
year = {2013}
}
Comments
12 pages, 5 figures