68 citations · 291 across the 14 of their papers we have counts for
14 papers
Relativistic variational methods and the Virial Theorem
Charlotte Froese Fischer, Michel Godefroid
In the case of the one-electron Dirac equation with a point nucleus the Virial Theorem (VT) states that the ratio of the kinetic energy to potential energy is exactly , a ratio…
Natural orbitals in multiconfiguration calculations of hyperfine structure parameters
Sacha Schiffmann, Michel Godefroid, Jörgen Ekman +2
We are reinvestigating the hyperfine structure of sodium using a fully relativistic multiconfiguration approach. In the fully relativistic approach, the computational strategy some…
Transition rates for transitions in Al I
Charlotte Froese Fischer, James F. Babb
Fully relativistic calculations have been performed for two multiplets, and , in Al I. Wave functions were obtained for all levels of these multiplets…
Electron Correlation in the Lanthanides: spectrum of Ce
Charlotte Froese Fischer, Michel R. Godefroid
Atoms and ions of Lanthanides have multiple opens shells along with an open subshell. This paper studies the effect of electron correlation in such systems and how wave func…
Electron affinities of At and its homologous elements Cl, Br, and I
R. Si, C. Froese Fischer
The multiconfiguration Dirac-Hartree-Fock method is applied to study the electron affinities of At and its homologous elements Cl, Br, and I. Our method of calculation is validated…
Breit and QED effects on the 3d9 2D3/2 - 2D5/2 transition energy in Co-like ions
R. Si, X. L. Guo, T. Brage +3
The multiconfiguration Dirac-Hartree-Fock theory is used to calculate the 3d9 2D3/2 - 2D5/2 transition energy for Co-like ions with Z = 28-100. We investigate how electron correlat…