Variational calculation of some S-states of Coulomb three-body systems |
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| Authors: | F. Arias de Saavedra E. Buendıa F.J. Gálvez A. Sarsa |
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| Affiliation: | (1) Departamento de Fısica Moderna, Facultad de Ciencias, Universidad de Granada, 18071 Granada, Spain, ES;(2) Department of Physics and Astronomy, Arizona State University, Tempe, Arizona 85287, USA, US |
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| Abstract: | ![]()
A generalized Hylleraas-type basis set with three nonlinear parameters is proposed to study three-body systems interacting via coulomb forces within the framework of non-relativistic quantum mechanics. This basis set improves the rate of convergence with respect to previous ones, specially for non-symmetric systems and excited states of two electron atoms. Accurate binding energies and other properties for S-states of helium-like ions, muonic molecules and the positronium negative ion are reported. Received 21 July 2000 and Received in final form 4 October 2000 |
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| Keywords: | PACS. 36.10.Dr Positronium, muonium, muonic atoms and molecules – 31.25.-v Electron correlation calculations for atoms and molecules – 31.15.Pf Variational techniques |
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