https://doi.org/10.1007/s100530050298
Wave functions for two- and three-electron atoms and isoelectronic ions
Department of Physics, Indian Institute of Technology,
Bombay 400 076, India
Received:
5
August
1998
Revised:
27
November
1998
Published online: 15 May 1999
We have developed simple wave functions for two- and
three-electron atoms and ions, which have the correct structure
when one of the electrons is far away, or when two of the
particles are close to each other. These essentially
parameter-free wave functions allow us to deduce fairly accurate
values for the energies, 
, for multipolar
polarizabilities of two-electron atoms and ions, and for the
coefficients of the asymptotic density.
PACS: 31.15.-p – Calculations and mathematical techniques in atomic and molecular physics (excluding electron correlation calculations) / 31.15.Ar – Ab initio calculations
© EDP Sciences, Società Italiana di Fisica, Springer-Verlag, 1999
