1. Short‐range correlation energy of the relativistic homogeneous electron gas.
- Author
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Paquier, Julien and Toulouse, Julien
- Subjects
- *
RELATIVISTIC energy , *ELECTRON-electron interactions , *HEAVY elements , *RELATIVISTIC electrons , *ELECTRON gas - Abstract
We construct the complementary short‐range correlation relativistic local‐density‐approximation functional to be used in relativistic range‐separated density‐functional theory based on a Dirac‐Coulomb Hamiltonian in the no‐pair approximation. For this, we perform relativistic random‐phase‐approximation calculations of the correlation energy of the relativistic homogeneous electron gas with a modified electron–electron interaction, we study the high‐density behavior, and fit the results to a parametrized expression. The obtained functional should eventually be useful for electronic‐structure calculations of strongly correlated systems containing heavy elements. [ABSTRACT FROM AUTHOR]
- Published
- 2021
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