Short‐range correlation energy of the relativistic homogeneous electron gas
Random phase approximation
Hamiltonian (control theory)
Relativistic quantum chemistry
Electronic correlation
DOI:
10.1002/qua.26685
Publication Date:
2021-05-03T11:46:56Z
AUTHORS (2)
ABSTRACT
We construct the complementary short-range correlation relativistic local-density-approximation functional to be used in range-separated density-functional theory based on a Dirac-Coulomb Hamiltonian no-pair approximation. For this, we perform random-phase-approximation calculations of energy homogeneous electron gas with modified electron-electron interaction, study high-density behavior, and fit results parametrized expression. The obtained should eventually useful for electronic-structure strongly correlated systems containing heavy elements.
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