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 (9)

• Relativistic, QED, and finite nuclear mass corrections for low-lying states of Li and Be${}^{+}$
• Relativistic recoil, electron-correlation, and QED effects on the 2p_j-2s transition energies in Li-like ions
• 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
• Fine and hyperfine splitting of the 2P state in Li and Be${}^{+}$
• Quantum electrodynamics corrections to the $2P$ fine splitting in Li
• 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

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