Relativistic effects on electronic pair densities: a perspective from the radial intracule and extracule probability densities
Chemical Physics
2022-11-30 v2 Atomic Physics
Quantum Physics
Abstract
While the effect of relativity in the electronic density has been widely studied, the effect on the pair probability, intracule, and extracule densities has not been studied before. Thus, in this work, we unveil new insights related to changes on the electronic structure caused by relativistic effects. Our numerical results suggest that the mean inter-electronic distance is reduced (mostly) due to scalar-relativistic effects. As a consequence, an increase of the electron-electron repulsion energy is observed. Preliminary results suggest that this observation is also valid when electronic correlation effects are considered.
Keywords
Cite
@article{arxiv.2209.09542,
title = {Relativistic effects on electronic pair densities: a perspective from the radial intracule and extracule probability densities},
author = {Mauricio Rodríguez-Mayorga and Daniël Keizer and Klaas J. H. Giesbertz and Luuk Visscher},
journal= {arXiv preprint arXiv:2209.09542},
year = {2022}
}