A generalized Poisson equation and short-range self-interaction energies.

Abstract

We generalize the Poisson equation to attenuated Newtonian potentials. If the attenuation is at least exponential, the equation provides a local mapping between the density and its potential. We use this to derive several density functionals for the short-range self-interaction energy. 
DOI: 10.1063/1.2945298

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