@article{b679a005a4af414ebdfeaa187b99d2b4,
title = "Relativistic corrections to the non-Born-Oppenheimer energies of the lowest singlet Rydberg states of He3 and He4",
abstract = "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.",
author = "Monika Stanke and Dariusz Kȩdziera and Sergiy Bubin and Ludwik Adamowicz",
note = "Funding Information: This work has been supported by the National Science Foundation. The authors would like to thank Professor Jacek Karwowski and Professor Lutoslaw Wolniewicz for many valuable discussions and suggestions concerning this work. Thanks are also due to Professor Jacek Komasa and Professor Krzysztof Pachucki for their valuable suggestions concerning evaluating some of the relativistic integrals.",
year = "2007",
doi = "10.1063/1.2735305",
language = "English (US)",
volume = "126",
journal = "Journal of Chemical Physics",
issn = "0021-9606",
publisher = "American Institute of Physics Publising LLC",
number = "19",
}