A numerical Hartree self-consistent field calculation of an autoionization resonance parameters for a doubly excited 2s2, 3s2, and 4s2 states of He atom with a complex absorbing potential

doi:10.1088/1674-1056/26/8/083101

Abstract

The self-consistent Hartree-Fock equation for the He atom is solved using the pseudospectral method. The Feshbach-type autoionization resonance parameters for doubly excited 2s², 3s², and 4s² ¹S states of He have been determined by adding a complex absorbing potential to the Hamiltonian. The Riss-Meyer iterative and Padé extrapolation methods are applied to obtain reliable values for the autoionization resonance parameters, which are compared to previous results in the literature.

Keywords: self-consistent field Hartree-Fock equation helium autoionization pseudospectral method

Received: 03 February 2017
Revised: 27 March 2017
Accepted manuscript online:

PACS:	31.10.+z	(Theory of electronic structure, electronic transitions, and chemical binding)
	31.15.xr	(Self-consistent-field methods)
	32.80.Zb	(Autoionization)

Corresponding Authors: Tsogbayar Tsednee
E-mail: tsogbayar.tsednee@tamu.edu

About author: 0.1088/1674-1056/26/8/

Cite this article:

Tsogbayar Tsednee, Danny L Yeager A numerical Hartree self-consistent field calculation of an autoionization resonance parameters for a doubly excited 2s², 3s², and 4s² states of He atom with a complex absorbing potential 2017 Chin. Phys. B 26 083101

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A numerical Hartree self-consistent field calculation of an autoionization resonance parameters for a doubly excited 2s2, 3s2, and 4s2 states of He atom with a complex absorbing potential

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A numerical Hartree self-consistent field calculation of an autoionization resonance parameters for a doubly excited 2s², 3s², and 4s² states of He atom with a complex absorbing potential