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 language | English |
|---|---|
| Article number | 012509 |
| Journal | Physical Review A - Atomic, Molecular, and Optical Physics |
| Volume | 84 |
| Issue number | 1 |
| DOIs | |
| Publication status | Published - Jul 19 2011 |
| Externally published | Yes |
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ASJC Scopus subject areas
- Atomic and Molecular Physics, and Optics
Cite this
Ground-state energy and relativistic corrections for positronium hydride. / Bubin, Sergiy; Varga, Kálmán.
In: Physical Review A - Atomic, Molecular, and Optical Physics, Vol. 84, No. 1, 012509, 19.07.2011.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - Ground-state energy and relativistic corrections for positronium hydride
AU - Bubin, Sergiy
AU - Varga, Kálmán
PY - 2011/7/19
Y1 - 2011/7/19
N2 - 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.
AB - 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.
UR - http://www.scopus.com/inward/record.url?scp=79961092755&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=79961092755&partnerID=8YFLogxK
U2 - 10.1103/PhysRevA.84.012509
DO - 10.1103/PhysRevA.84.012509
M3 - Article
VL - 84
JO - Physical Review A
JF - Physical Review A
SN - 1050-2947
IS - 1
M1 - 012509
ER -