(1) Departamento de Física Moderna, Facultad de Ciencias, Universidad de Granada, 18071 Granada, Spain;(2) Departamento de Física, Campus de Rabanales, Edificio C2 Universidad de Córdoba, 14071 Córdoba, Spain
Abstract:
Explicitly correlated wave functions including a Jastrow factor
to take into account the dynamical correlation effects, and a
multi determinant model wave function to account for the non–dynamical
correlations are used to study some metastable excited states of the
negative ions Li- and Be-.
A detailed analysis of one– and two–body properties has been carried out
for these states. In particular the single–particle density as well as both
the two–body inter electronic and center of mass densities have been obtained.
All the calculations have been performed by using the variational Monte Carlo
method.