Gradient-free representation of the Weizsäcker term for atoms

Pathak, Rajeev K. ; Gadre, Shridhar R. (1983) Gradient-free representation of the Weizsäcker term for atoms Physical Review A, 28 (3). pp. 1808-1809. ISSN 1050-2947

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Official URL: http://pra.aps.org/abstract/PRA/v28/i3/p1808_1

Related URL: http://dx.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.

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