Relativistic calculations reveal the g factor for lithium-like ions up to Z=92, suggesting significant QED contributions and nuclear recoil effects.
Relativistic calculations for the g factor of the lowest excited states 2p1/2 and 2p3/2 of lithium-like ions over a wide range of the nuclear charge numbers $Z=10-92$ are presented. Interelectronic interaction is considered within the perturbation theory up to the second order. One-loop QED contributions are calculated to all orders in α Z. Leading contributions of the nuclear recoil effects are taken into account. The quadratic and cubic terms in magnetic field are considered as well. A set of screening potentials is used in all calculations to estimate the unknown higher-order correlation effects.
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Zinenko et al. (2025) studied this question.
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