info:eu-repo/semantics/article
Ground state for two-electron and electron-muon three-body atomic systems
Fecha
2010-11Registro en:
Rodriguez, Karina Viviana; Ancarani, L.U.; Gasaneo, Gustavo; Mitnik, Dario Marcelo; Ground state for two-electron and electron-muon three-body atomic systems; John Wiley & Sons Inc; International Journal of Quantum Chemistry; 110; 10; 11-2010; 1820-1832
0020-7608
1097-461X
CONICET Digital
CONICET
Autor
Rodriguez, Karina Viviana
Ancarani, L.U.
Gasaneo, Gustavo
Mitnik, Dario Marcelo
Resumen
In this article, the angular correlated configuration interaction method previously introduced by some of the authors is extended to three-body atomic systems with general masses. A recently proposed angularly correlated basis set is used to construct ground state wave functions which: (i) satisfy exactly Kato cusp conditions atthe two-body coalescence points; (ii) have only linear coefficients; and (iii) show a fast convergency rate for the energy. The efficiency of the construction is illustrated by the study of the negatively charged hydrogen-like systems (∞H-, T-, D-, 1H-, and Mu-), neutral helium-like systems (e-e- ∞He +2,e-e- 4He+2, e -e- 3He+2, e-μ - ∞He+2, e-μ -4He+2, and e-μ- 3He+2), and positively charged lithium-like systems (e-e- ∞Li+3,e -e- 7Li+3, e-e - 6Li+3, e-μ- ∞Li+3, e-μ- 7Li+3, and e-μ- 6Li+3). The ground state energies and other mean values are compared with those given in the literature, when available. Wave functions with a moderate number of (20 maximum) linear coefficients are given explicitly; they are sufficiently simple and accurate to be used in practical calculations of atomic collision in which multidimensional integrations are involved.