Atomic and molecular electronic bound
states in a Debye-Hückel potential.
Prof. Jesus M. UGALDE,
Kimika Fakultatea, Euskal Herriko Unibertsitatea
P.K.1072, 20080 Donostia, Euskadi (Spain)
Mail: Ugalde@sq.ehu.es
Web: J.Ugalde, groupe
Jeudi 2 décembre 2004 à 11 heures
Salles RAPHAEL - site d'Ivry-sur-Seine
The properties of the discrete atomic and molecular electronic energy
levels in an exponentially shielded Coulomb potential, which is known in
plasma physics as the Debye-Huckel potential and in nuclear physics as the
Yukawa potential will be discussed. A Full-CI approach will be used for
the calculation of the electronic structure under such an interaction
potential. Some of the systems studied have been found to be Borromean in
nature under appropriate shielding strength conditions, will be determined
and discussed. Increasing shielding strength induces electron detachment
either sequential or simultaneous. Both cases will be illustrated with
examples.