LARGE-ORDER DIMENSIONAL PERTURBATION-THEORY FOR H2+

Authors
LOPEZCABRERA M GOODSON DZ HERSCHBACH DR MORGAN JD
Citation
M. Lopezcabrera et al., LARGE-ORDER DIMENSIONAL PERTURBATION-THEORY FOR H2+, Physical review letters, 68(13), 1992, pp. 1992-1995
Citations number
38
Journal title
Physical review letters → ACNP
ISSN journal
00319007
Volume
68
Issue
13
Year of publication
1992
Pages
1992 - 1995
Database
ISI
SICI code
0031-9007(1992)68:13<1992:LDPFH>2.0.ZU;2-J
Abstract
An asymptotic expansion for the electronic energy of H-2(+) is develop ed in inverse powers of D, the spatial dimension, and the singularity structure in the D --> infinity limit is elucidated by analysis of the coefficients at large order (approximately 30 to 45). For the ground state and several excited states, Pade-Borel summation yields an accur acy of eight or more significant figures.