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Accurate relativistic density functional for exchange energy of atomic nuclei

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Title
Accurate relativistic density functional for exchange energy of atomic nuclei
Author(s)
Qiang Zhao; Zhengxue Ren; Zhao, P.; Tae-Sun Park
Publication Date
2023-06
Journal
Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics, v.841
Publisher
Elsevier B.V.
Abstract
The inclusion of nucleonic exchange energy has been a long-standing challenge for the relativistic density functional theory (RDFT) in nuclear physics. We propose an orbital-dependent relativistic Kohn-Sham density functional theory to incorporate the exchange energy with local Lorentz scalar and vector potentials. The relativistic optimized effective potential equations for the local exchange potentials are derived and solved efficiently. The obtained binding energies and charge radii for nuclei are benchmarked with the results given by the traditional relativistic Hartree-Fock approach, which involves complicated nonlocal potentials. It demonstrates that the present framework is not only accurate but also efficient. © 2023 The Author(s)
URI
https://pr.ibs.re.kr/handle/8788114/13517
DOI
10.1016/j.physletb.2023.137913
ISSN
0370-2693
Appears in Collections:
Center for Exotic Nuclear Studies(희귀 핵 연구단) > 1. Journal Papers (저널논문)
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