g factor of high-Z lithiumlike ions -: art. no. 062104

The g factor of Li-like ions is evaluated in the range Z=6-92. The interelectronic-interaction correction of first order in 1/Z is calculated to all orders in alphaZ within a rigorous QED approach. The higher-order interelectronic-interaction, the one-electron QED, and the nuclear recoil corrections are evaluated to lowest orders in alphaZ. It is found that the uncertainty due to the nuclear size effect can be significantly reduced in a specific difference of the g factors of H- and Li-like ions.