J. Phys. II France
Volume 3, Numéro 4, April 1993
Page(s) 449 - 463
DOI: 10.1051/jp2:1993143
J. Phys. II France 3 (1993) 449-463

Self-consistent description of finite multielectron systems: new approach

M. Ya. Amusia1 and V. R. Shaginyan2

1  Institüt für Theoretische Physik, Universität Frankfurt, 6000 Frankfurt am Main, 11 Germany
2  St.Petersburg Nuclear Physics Institute, Gatchina, St.Petersburg 188350, Russia

(Received 29 July 1992, accepted in final form 6 January 1993)

An analytical expression for the effective interaction in a finite multielectron system is derived. The interaction is of finite radius and is density dependent. An analytical expression is also derived for the effective single particle potential and an equation is presented for the linear response function of the considered system. Thus it is demonstrated that the spectrum, photoeffect and electron scattering cross section for such a system may be calculated by solving a complete system of integral and differential equations.

31.10 - 71.10

© Les Editions de Physique 1993