Stability of light positronic atoms: Quantum Monte Carlo studies

A. Harju, B. Barbiellini, R.M. Nieminen

Research output: Contribution to journalArticleScientificpeer-review

25 Citations (Scopus)
1 Downloads (Pure)

Abstract

We present accurate ground-state energies for the positronium atom in a Coulomb field of point charge Z (XZPs), for the positronium hydrogen (HPs) and positronium lithium (LiPs) atoms. Calculations are done using the diffusion quantum Monte Carlo (DQMC) method. For XZPs, the critical value of Z for binding is examined. While HPs is stable, the results show that LiPs is unstable against dissociation to a lithium atom and a positronium.
Original languageEnglish
Pages (from-to)4849-4853
JournalPhysical Review A
Volume54
Issue number6
DOIs
Publication statusPublished - 1996
MoE publication typeA1 Journal article-refereed

Keywords

  • Positron annihilation
  • Quantum Monte Carlo

Fingerprint

Dive into the research topics of 'Stability of light positronic atoms: Quantum Monte Carlo studies'. Together they form a unique fingerprint.

Cite this