Published December 1996 | Version v1
Journal article Metadata-only

Stability of light positronic atoms: Quantum Monte Carlo studies

Creators

  • 1. Laboratory of Physics, Helsinki University of Technology, FIN-02150 Espoo (Finland)

Description

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. copyright 1996 The American Physical Society

Additional details

Publishing Information

Journal Title
Physical Review. A
Journal Volume
54
Journal Issue
6
Journal Page Range
p. 4849-4853.
ISSN
1050-2947
CODEN
PLRAAN

INIS

Country of Publication
United States
Country of Input or Organization
United States
INIS RN
28016246
Subject category
S74: ATOMIC AND MOLECULAR PHYSICS;
Descriptors DEI
DISSOCIATION; ENERGY LEVELS; GROUND STATES; LITHIUM; LITHIUM COMPOUNDS; MONTE CARLO METHOD; POSITRONIUM; POSITRONIUM COMPOUNDS; STABILITY
Descriptors DEC
ALKALI METAL COMPOUNDS; ALKALI METALS; CALCULATION METHODS; ELEMENTS; METALS