Ionization energies along beryllium isoelectronic sequence

被引：24

作者：

Malyshev, A. V. ^{[1
,2
]}

Volotka, A. V. ^{[1
,3
]}

Glazov, D. A. ^{[1
,2
,3
]}

Tupitsyn, I. I. ^{[1
]}

Shabaev, V. M. ^{[1
]}

Plunien, G. ^{[3
]}

机构：

[1] St Petersburg State Univ, Dept Phys, St Petersburg 198504, Russia

[2] Natl Res Ctr, State Sci Ctr, Inst Theoret & Expt Phys, Kurchatov Inst, Moscow 117218, Russia

[3] Tech Univ Dresden, Inst Theoret Phys, D-01062 Dresden, Germany

来源：

PHYSICAL REVIEW A | 2015年 / 92卷 / 01期

关键词：

GROUND-STATE ENERGY; POLARIZATION SCREENING CORRECTIONS; NUCLEAR RECOIL CORRECTIONS; LAMB-SHIFT; QUANTUM ELECTRODYNAMICS; VACUUM-POLARIZATION; HEAVY-IONS; LITHIUM; HYDROGENLIKE; ATOMS;

D O I：

10.1103/PhysRevA.92.012514

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

Ionization energies for the ground state of berylliumlike ions with nuclear charge numbers in the range 16 <= Z <= 96 are rigorously evaluated. The calculations merge the ab initio QED treatment in the first and second orders of the perturbation theory in the fine-structure constant a with the third-and higher-order electron-correlation contributions evaluated within the Breit approximation. The nuclear recoil and nuclear polarization effects are taken into account. The accuracy of the ionization energies obtained has been significantly improved in comparison with previous calculations.

引用

页数：10

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