Relativistic corrections to the ground-state energy of the positronium molecule

Sergiy Bubin, Monika Stanke, Dariusz Kdziera, Ludwik Adamowicz

Research output: Contribution to journalArticle

19 Citations (Scopus)

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.

Original languageEnglish
Article number062504
JournalPhysical Review A - Atomic, Molecular, and Optical Physics
Volume75
Issue number6
DOIs
Publication statusPublished - Jun 11 2007
Externally publishedYes

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positronium
perturbation theory
wave functions
expansion
ground state
molecules
energy

ASJC Scopus subject areas

  • Atomic and Molecular Physics, and Optics
  • Physics and Astronomy(all)

Cite this

Relativistic corrections to the ground-state energy of the positronium molecule. / Bubin, Sergiy; Stanke, Monika; Kdziera, Dariusz; Adamowicz, Ludwik.

In: Physical Review A - Atomic, Molecular, and Optical Physics, Vol. 75, No. 6, 062504, 11.06.2007.

Research output: Contribution to journalArticle

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