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Frank, Rupert L. ORCID logoORCID: https://orcid.org/0000-0001-7973-4688; Nam, Phan Thanh und Bosch, Hanne van den (2018): The Maximal Excess Charge in Muller Density-Matrix-Functional Theory. In: Annales Henri Poincare, Bd. 19, Nr. 9: S. 2839-2867

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Abstract

We consider an atom described by Muller theory, which is similar to Hartree-Fock theory, but with a modified exchange term. We prove that a nucleus of charge Z can bind at most Z+C electrons, where C is a universal constant. Our proof proceeds by comparison with Thomas-Fermi theory, and a key ingredient is a novel bound on the number of electrons far from the nucleus.

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