Ground state of two electrons on a sphere
Date
2009
Authors
Loos, Pierre-Francois
Gill, Peter
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Volume Title
Publisher
American Physical Society
Abstract
We have performed a comprehensive study of the singlet ground state of two electrons on the surface of a sphere of radius R. We have used electronic structure models ranging from restricted and unrestricted Hartree-Fock theories to explicitly correlated treatments, the last of which leads to near-exact wave functions and energies for any value of R. Møller-Plesset energy corrections (up to fifth-order) are also considered, as well as the asymptotic solution in the large- R regime.
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Keywords
Keywords: Asymptotic solutions; Comprehensive studies; Energy correction; Singlet ground state; Unrestricted Hartree-Fock; Electronic structure; Ground state
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Source
Physical Review A: Atomic, Molecular and Optical Physics
Type
Journal article
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2037-12-31
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