Relativistic corrections to the non-Born-Oppenheimer energies of the lowest singlet Rydberg states of 3He and 4He.
In this work the authors present an approach to calculate the leading-order relativistic corrections for ground and excited states of helium isotopomers. In the calculations they used variational wave functions expanded in terms of explicitly correlated Gaussians obtained without assuming the Born-Oppenheimer approximation.
Stanke
Monika
M
Department of Chemistry, University of Arizona, Tucson, Arizona 85721 and Institute of Physics, Nicholas Copernicus University, ul. Grudziadzka 5, PL 87-100 Toruń, Poland.
Kedziera
Dariusz
D
Bubin
Sergiy
S
Adamowicz
Ludwik
L