title: Many-electron QED corrections to the g factor of lithiumlike ions.
abstract: A rigorous QED evaluation of the two-photon exchange corrections to the g factor of lithiumlike ions is presented. The screened self-energy corrections are calculated for the intermediate-Z region, and its accuracy for the high-Z region is essentially improved in comparison with that of previous calculations. As a result, the theoretical accuracy of the g factor of lithiumlike ions is significantly increased. The theoretical prediction obtained for the g factor of (28)Si(11+) g(th) = 2.000 889 892(8) is in an excellent agreement with the corresponding experimental value g(exp) = 2.000 889 889 9(21) [A. Wagner et al., Phys. Rev. Lett. 110, 033003 (2013).
authors.affiliation: Institut für Theoretische Physik, Technische Universität Dresden, Mommsenstraße 13, D-01062 Dresden, Germany and Department of Physics, St. Petersburg State University, Oulianovskaya 1, Petrodvorets, 198504 St. Petersburg, Russia.
authors.forename: A V
authors.initials: AV
authors.lastname: Volotka
authors.affiliation: Institut für Theoretische Physik, Technische Universität Dresden, Mommsenstraße 13, D-01062 Dresden, Germany and Department of Physics, St. Petersburg State University, Oulianovskaya 1, Petrodvorets, 198504 St. Petersburg, Russia and Institute for Theoretical and Experimental Physics, NRC Kurchatov Institute, B. Cheremushkinskaya 25, 117218 Moscow, Russia.
authors.forename: D A
authors.initials: DA
authors.lastname: Glazov
authors.affiliation: Department of Physics, St. Petersburg State University, Oulianovskaya 1, Petrodvorets, 198504 St. Petersburg, Russia.
authors.forename: V M
authors.initials: VM
authors.lastname: Shabaev
authors.affiliation: Department of Physics, St. Petersburg State University, Oulianovskaya 1, Petrodvorets, 198504 St. Petersburg, Russia.
authors.forename: I I
authors.initials: II
authors.lastname: Tupitsyn
authors.affiliation: Institut für Theoretische Physik, Technische Universität Dresden, Mommsenstraße 13, D-01062 Dresden, Germany.
authors.forename: G
authors.initials: G
authors.lastname: Plunien