TY - JOUR
T1 - Nonrelativistic variational calculations of the positronium molecule and the positronium hydride
AU - Bubin, Sergiy
AU - Adamowicz, Ludwik
PY - 2006
Y1 - 2006
N2 - Highly accurate ground-state nonrelativistic variational calculations of Ps2, H1 Ps, and H 1 Ps are reported. The calculations have been performed using 5000 explicitly correlated Gaussian basis functions and yielded the lowest variational energy upper bounds for these systems to date. The relative accuracies of the energies obtained are of the order of 4× 10-10 a.u. for Ps2 and 2× 10-9 a.u. for HP. Several expectation values have also been computed for each system, as well as electron-positron annihilation rates.
AB - Highly accurate ground-state nonrelativistic variational calculations of Ps2, H1 Ps, and H 1 Ps are reported. The calculations have been performed using 5000 explicitly correlated Gaussian basis functions and yielded the lowest variational energy upper bounds for these systems to date. The relative accuracies of the energies obtained are of the order of 4× 10-10 a.u. for Ps2 and 2× 10-9 a.u. for HP. Several expectation values have also been computed for each system, as well as electron-positron annihilation rates.
UR - http://www.scopus.com/inward/record.url?scp=33751119941&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=33751119941&partnerID=8YFLogxK
U2 - 10.1103/PhysRevA.74.052502
DO - 10.1103/PhysRevA.74.052502
M3 - Article
AN - SCOPUS:33751119941
SN - 1050-2947
VL - 74
JO - Physical Review A - Atomic, Molecular, and Optical Physics
JF - Physical Review A - Atomic, Molecular, and Optical Physics
IS - 5
M1 - 052502
ER -