Ground state of two electrons on a sphere

Details Ground state of two electrons on a sphere Ground state of two electrons on a sphere

2010-02-17

arxiv.org/abs/1002.3398v1

Phys. Rev. A 79, 062517 (2009)

Physics

Condensed Matter

Other Condensed Matter

9 pages, 3 figures

Scientific paper

10.1103/PhysRevA.79.062517

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 theory to explicitly correlated treatments, the last of which lead to near-exact wavefunctions and energies for any value of $R$. M{\o}ller-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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