Theory of the two-loop self-energy correction to the $\mathbf{g}$ factor in non-perturbative Coulomb fields

B. Sikora, V. A. Yerokhin, N. S. Oreshkina +3

Two-loop self-energy corrections to the bound-electron $g$ factor are investigated theoretically to all orders in the nuclear binding strength parameter $Z\alpha$. The separation of div…