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An accurate few-parameter ground state wave function for the Lithium atom

Authors :
Guevara, Nicolais L.
Harris, Frank E
Turbiner, Alexander V
Publication Year :
2009

Abstract

A simple, seven-parameter trial function is proposed for a description of the ground state of the Lithium atom. It includes both spin functions. Inter-electronic distances appear in exponential form as well as in a pre-exponential factor, and the necessary energy matrix elements are evaluated by numerical integration in the space of the relative coordinates. Encouragingly accurate values of the energy and the cusp parameters as well as for some expectation values are obtained.<br />Comment: 9 pages, dedicated to Frank E Harris on the occasion of his birthday, extra references added as well as the results for expectation values

Subjects

Subjects :
Physics - Atomic Physics

Details

Database :
arXiv
Publication Type :
Report
Accession number :
edsarx.0901.3020
Document Type :
Working Paper
Full Text :
https://doi.org/10.1002/qua.22217