Inhomogeneity terms in exchange and correlation
- 1 January 1970
- journal article
- Published by IOP Publishing in Journal of Physics C: Solid State Physics
- Vol. 3 (1) , L17-L20
- https://doi.org/10.1088/0022-3719/3/1/035
Abstract
Exchange and correlation energies of an inhomogeneous electron gas are examined. The first two inhomogeneity terms in the exchange energy are rigorously derived to within a constant coefficient. The usefulness of an equivalent set of one-electron equations in calculating Fermi surfaces is discussed. Exchange and correlation potentials are derived.Keywords
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