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Title: Ground-state energy and relativistic corrections for positronium hydride

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 2x10{sup -10}, which is a significant improvement over previous nonrelativistic results.

Authors:
;  [1]
  1. Department of Physics and Astronomy, Vanderbilt University, Nashville, Tennessee 37235 (United States)
Publication Date:
OSTI Identifier:
22051297
Resource Type:
Journal Article
Journal Name:
Physical Review. A
Additional Journal Information:
Journal Volume: 84; Journal Issue: 1; Other Information: (c) 2011 American Institute of Physics; Country of input: International Atomic Energy Agency (IAEA); Journal ID: ISSN 1050-2947
Country of Publication:
United States
Language:
English
Subject:
72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS; ACCURACY; DISSOCIATION ENERGY; ELECTRON-POSITRON INTERACTIONS; GAUSS FUNCTION; GROUND STATES; HYDRIDES; POSITRONIUM; RELATIVISTIC RANGE

Citation Formats

Bubin, Sergiy, and Varga, Kalman. Ground-state energy and relativistic corrections for positronium hydride. United States: N. p., 2011. Web. doi:10.1103/PHYSREVA.84.012509.
Bubin, Sergiy, & Varga, Kalman. Ground-state energy and relativistic corrections for positronium hydride. United States. doi:10.1103/PHYSREVA.84.012509.
Bubin, Sergiy, and Varga, Kalman. Fri . "Ground-state energy and relativistic corrections for positronium hydride". United States. doi:10.1103/PHYSREVA.84.012509.
@article{osti_22051297,
title = {Ground-state energy and relativistic corrections for positronium hydride},
author = {Bubin, Sergiy and Varga, Kalman},
abstractNote = {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 2x10{sup -10}, which is a significant improvement over previous nonrelativistic results.},
doi = {10.1103/PHYSREVA.84.012509},
journal = {Physical Review. A},
issn = {1050-2947},
number = 1,
volume = 84,
place = {United States},
year = {2011},
month = {7}
}