31 citations · 53 across the 11 of their papers we have counts for
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Fock expansion for two-electron atoms. High order angular coefficients
Evgeny Z. Liverts, Rajmund Krivec
The Fock expansion, which describes the properties of two-electron atoms near the nucleus, is studied. The angular Fock coefficients with the maximum possible value…
Electrons on sphere in the helium-like atomic systems
Evgeny Z. Liverts
The properties of a special configuration of a helium-like atomic system, when both electrons are on the surface of a sphere of radius , and angle characterizes their positi…
Accurate exponential representations for the ground states of the collinear two-electron atomic systems
Evgeny Z. Liverts, Nir Barnea
In the framework of the study of helium-like atomic systems possessing the collinear configuration, we propose a simple method for computing compact but very accurate wave function…
Small recoil momenta double ionization of He and two-electron ions by high energy photons
Miron Ya. Amusia, Evgeny G. Drukarev, Evgeny Z. Liverts
We calculate various differential and double differential characteristics of ionization by a single photon for H, He and for the two-electron ions with Z=3,4,5 in the region of…
The collinear helium atom and two-electron ions
Evgeny Z. Liverts, Rajmund Krivec, Nir Barnea
Collinear configurations of the helium-like atomic systems, relevant, e.g., for the quasifree mechanism of the double photoionization of helium, are studied, parameterized by the s…
Averaged electron densities of the helium-like atoms
Evgeny Liverts, Rajmund Krivec
Different kinds of averaging of the wavefunctions/densities of the two-electron atomic systems are investigated. Using the Pekeris-like method, the ground state wave functions …