Title




Correlated kinetic energy density functional of ground states of harmonically confined twoelectron atoms for arbitrary interparticle interaction


Author






Abstract




Utilizing the earlier work of Holas et al (2003 Phys. Lett. A 310 451) and the more recent contribution of Akbari et al (2009 Phys. Rev. A 80 032509), we construct an integral equation for the relative motion (RM) contribution t(RM)(r) to the correlated kinetic energy density for modelling twoelectron atoms with harmonic confinement but arbitrary interparticle interaction. It is stressed that t(RM) = t(RM)[f (G)], where f (G) is the atomic scattering factor: the Fourier transform of the density rho(r). As a simple illustrative example of this functional relation for the correlated kinetic energy density, the harmonic Moshinsky case is investigated, the scattering factor then having a Gaussian form. 


Language




English


Source (journal)




Physica scripta.  Stockholm


Publication




Stockholm
:
2012


ISSN




00318949


Volume/pages




85
:6
(2012)
, 2 p.


Article Reference




065303


ISI




000305390900019


Medium




Eonly publicatie


Full text (Publisher's DOI)






Full text (publisher's version  intranet only)





