3 papers
physics.atom-ph2026
Atomic data benchmarked by Large-scale Multiconfiguration Dirac-Hartree-Fock Calculations for Beryllium
Sijie Wu, Shaowei Tian, Ran Si +6
The multiconfiguration Dirac-Hartree-Fock (MCDHF) and relativistic configuration interaction (RCI) methods are used to provide excitation energies, radiative transition data, lifet…
physics.atom-ph2025
Prediction of Nuclear Clock Transitions Frequency Difference between Th and Th via \textit{ab-initio} Self-Consistent Field Theory
Ran Si, Chaofan Shi, Nan Xue +4
The isotope is a promising candidate for nuclear clocks, with its transition frequency influenced by electron-induced nuclear frequency shifts. This effect is com…
physics.atom-ph2024
Graspg -- An extension to Grasp2018 based on Configuration State Function Generators
Ran Si, Yanting Li, Kai Wang +4
The Graspg program package is an extension of Grasp2018 [Comput. Phys. Commun. 237 (2019) 184-187] based on configuration state function generators (CSFGs). The generators keep spi…