Relativistic corrections to the ground-state energy of the positronium molecule
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Date
2007
Authors
Bubin, Sergiy
Stanke, Monika
KeĀødziera, Dariusz
Adamowicz, Ludwik
Journal Title
Journal ISSN
Volume Title
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Abstract
The leading-order relativistic corrections to the ground-state energy of the positronium molecule Ps2 have been computed within the framework of perturbation theory. As the zero-order wave function we used a highly accurate nonrelativistic variational expansion in terms of 6000 explicitly correlated Gaussians that yielded the lowest variational upper bound for this system to date. We also report some expectation values representing the properties of Ps2
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Keywords
Research Subject Categories::NATURAL SCIENCES::Physics, positronium molecule
Citation
Sergiy Bubin, Monika Stanke, Dariusz KeĀødziera, Ludwik Adamowicz; 2007; Relativistic corrections to the ground-state energy of the positronium molecule; PHYSICAL REVIEW A