Amovilli, Howard and March model Hamiltonian is here extended to an arbitrary interparticle interaction strength. The model remains analytically solvable and the ground state wavefunction with a given, variationally determined, choice of parameters provides an approximate two-electron correlated s-wave function. Results are given for the series of nuclear charges between Z= 1 and 10. More than 60 % of s-wave correlation energy is recovered.

Approaching the s-wave model ground state energy of He-like atomic ions: results from a model Hamiltonian

AMOVILLI, CLAUDIO;
2016

Abstract

Amovilli, Howard and March model Hamiltonian is here extended to an arbitrary interparticle interaction strength. The model remains analytically solvable and the ground state wavefunction with a given, variationally determined, choice of parameters provides an approximate two-electron correlated s-wave function. Results are given for the series of nuclear charges between Z= 1 and 10. More than 60 % of s-wave correlation energy is recovered.
Amovilli, Claudio; March, N. H.
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11568/833923
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