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arXiv · physics/9710044

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

G. G. Ryzhikh·J. Mitroy
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Abstract

Calculations of the positron-Li system were performed using the Stochastic Variational Method and yielded a minimum energy of -7.53208 Hartree for the L=0 ground state. Unlike previous calculations of this system, the system was found to be stable against dissociation into the Ps + Li$^+$ channel with a binding energy of 0.00217 Hartree and is therefore electronically stable. This is the first instance of a rigorous calculation predicting that it is possible to combine a positron with a neutral atom and form an electronically stable bound state.

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BibTeXRIS

G. G. Ryzhikh, J. Mitroy. 1997-10-30. Positronic lithium, an electronically stable Li-e$^+$ ground state. https://doi.org/10.1103/physrevlett.79.4124

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