Improved Statistical Exchange Approximation for Inhomogeneous Many-Electron Systems
- 21 April 1969
- journal article
- research article
- Published by American Physical Society (APS) in Physical Review Letters
- Vol. 22 (16), 807-811
- https://doi.org/10.1103/physrevlett.22.807
Abstract
We have developed an improved exchange approximation for use in self-consistent atomic structure calculations and related problems. By adding an inhomogeneity correction to the Kohn-Sham-Gaspar exchange potential, we are able to obtain total energies for atoms that are consistently closer to the Hartree-Fock values than are those given by other recently proposed exchange potentials.Keywords
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