Ground-state energy and relativistic corrections for positronium hydride

Sergiy Bubin, Kálmán Varga

Research output: Contribution to journalArticle

13 Citations (Scopus)

Abstract

Variational calculations of the ground state of positronium hydride (HPs) are reported, including various expectation values, electron-positron annihilation rates, and leading relativistic corrections to the total and dissociation energies. The calculations have been performed using a basis set of 4000 thoroughly optimized explicitly correlated Gaussian basis functions. The relative accuracy of the variational energy upper bound is estimated to be of the order of 2×10-10, which is a significant improvement over previous nonrelativistic results.

Original languageEnglish
Article number012509
JournalPhysical Review A - Atomic, Molecular, and Optical Physics
Volume84
Issue number1
DOIs
Publication statusPublished - Jul 19 2011

ASJC Scopus subject areas

  • Atomic and Molecular Physics, and Optics

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