Gradient-free representation of the Weizsäcker term for atoms
- 1 September 1983
- journal article
- research article
- Published by American Physical Society (APS) in Physical Review A
- Vol. 28 (3) , 1808-1809
- https://doi.org/10.1103/physreva.28.1808
Abstract
It has been demonstrated that the Weizsäcker inhomogeneity term may be replaced by a gradient-free form for atomic systems. This forms a realization of a previous conjecture made by the authors [Phys. Rev. A 25 668 (1982)]. In the variational context, numerical computations have been performed with such a representation with the first-row atoms employed at test cases. The resulting energies are seen to match very well with their Hartree-Fock counterparts.Keywords
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