Positron and positronium affinities in the work-formalism Hartree-Fock approximation

Abstract

Positron binding to anions is investigated within the work formalism proposed by Harbola and Sahni for the halide anions and the systems Li^- through O^- excluding Be^- and N^-. The toal ground-state energies of the anion-positron bound systems are empirically found to be an upper bound to the Hartree-Fock energies. The computed expectation values as well as positron and positronium affinities are in good agreement with their restricted Hartree-Fock counterparts. Binding of a positron to neutral species is also investigated using an iterative method.

12 pages, to appear in Physical Review A

References in corpus (1)

• Positronic lithium, an electronically stable Li-e${}^{+}$ ground state

Cited by in corpus (1)

• Quantal Density Functional Theory of the Hydrogen Molecule