QED calculation of the $2p$ fine structure in Li-like ions

Abstract

Large-scale {\em ab initio} QED calculations are performed for the $2p_{3/2}$--$2p_{1/2}$ fine-structure interval of Li-like ions with nuclear charges $Z=5$--$92$. Improved theoretical predictions are obtained by combining together two complementary theoretical methods, namely, the approach that accounts for all orders in the binding nuclear strength and the nonrelativistic QED approach that accounts for all orders in the nonrelativistic electron-electron interaction. The resulting unified approach provides theoretical predictions which are more accurate than the available experimental results across the interval of the nuclear charges considered.

References in corpus (20)

• CODATA Recommended Values of the Fundamental Physical Constants: 2014
• Dual kinetic balance approach to basis set expansions for the Dirac equation
• Two-time Green function method in quantum electrodynamics of high-Z few-electron atoms
• QED calculation of the n=1 and n=2 energy levels in He-like ions
• Model operator approach to the Lamb shift calculations in relativistic many-electron atoms
• Relativistic nuclear recoil corrections to the energy levels of hydrogen-like and high $Z$ lithium like atoms in all orders in $\alpha Z$
• Relativistic, QED, and finite nuclear mass corrections for low-lying states of Li and Be${}^{+}$
• QED tests with highly-charged ions
• Relativistic recoil, electron-correlation, and QED effects on the 2p_j-2s transition energies in Li-like ions
• Quantum interference and light polarization effects in unresolvable atomic lines: application to a precise measurement of the 6,7 Li D2 lines
• Non-perturbative calculation of the two-loop Lamb shift in Li-like ions
• Relativistic and QED corrections to the g factor of Li-like ions
• QED treatment of electron correlation in Li-like ions
• Nuclear recoil corrections to the $2p_{\frac{3}{2}}$ state energy of hydrogen-like and high $Z$ lithium like atoms in all orders in $\alpha Z$
• Fine and hyperfine splitting of the 2P state in Li and Be${}^{+}$
• Quantum electrodynamics corrections to the $2P$ fine splitting in Li
• Evaluation of the two-photon exchange diagrams for the $(1s{)}^{2}2p_{3/2}$ electron configuration in Li-like ions
• Calculations of QED effects with the Dirac Green function
• Precision Test of Many-Body QED in the Be${}^{+}$ $2p$ Fine Structure Doublet Using Short-Lived Isotopes
• Screened self-energy correction to the 2p3/2-2s transition energy in Li-like ions

Cited by in corpus (7)

• QED calculations of energy levels of helium-like ions with $5\le Z\le 30$
• Model-QED operator for superheavy elements
• Model-QED-operator approach to relativistic calculations of the nuclear recoil effect in many-electron atoms and ions
• Benchmarking Many-body Approaches for the Determination of Isotope Shift Constants: Application to the Li, Be${}^{+}$ and Ar${}^{15+}$ Isoelectronic Systems
• Ab initio QED calculations in diatomic quasimolecules
• QED calculations of the $2p$-$2s$ transition energies in Li-like ions
• Analysis of nonresonant effects in the two-photon spectroscopy of helium