We have performed very accurate quantum mechanical calculations of the five lowest S states of the beryllium atom. In the nonrelativistic part of the calculations we used the …
A very accurate ground-state potential energy curve (PEC) of the| ${\rm He} _2^+ $| He 2+ molecule is calculated with 1200 explicitly correlated Gaussian functions with shifted centers …
Variational calculations employing explicitly correlated Gaussian functions and explicitly including the nuclear motion [ie, without assuming the Born-Oppenheimer (BO) …
S Doma, F El-Gammal - Acta Physica Polonica A, 2012 - bibliotekanauki.pl
Using variational Monte Carlo method we calculated the lowest order relativistic corrections for the ground state energies of the helium-like atoms, up to Z= 10, and also for some excited …
We have performed very accurate quantum-mechanical calculations for the two lowest S states of the lithium atom in order to determine the transition energy. In the nonrelativistic …
New accurate ground-state potential energy curves (PEC) for the 4 HeH+, 4 HeD+, 3 HeH+, and 3 HeD+ isotopologues are calculated with 600 explicitly correlated Gaussian (ECG) …
The leading-order relativistic corrections to the ground-state energy of the positronium molecule (Ps 2) have been computed within the framework of perturbation theory. As the …
The first-order relativistic effects such as relativistic correction to the kinetic energy, spin-orbit interaction and one-and two-body Darwin terms for the ground and excited states of …
Explicitly correlated Gaussian functions have been used to perform very accurate variational calculations for the ground states of Li 7 and Li− 7. The nuclear motion has been explicitly …