Berlin 2014 – wissenschaftliches Programm
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A: Fachverband Atomphysik
A 2: Precision spectroscopy of atoms and ions I (with Q)
A 2.4: Vortrag
Montag, 17. März 2014, 11:15–11:30, BEBEL E42
High-precision QED calculations of the g factor of Li-like ions — •Andrey Volotka1, Dmitry Glazov2, Vladimir Shabaev2, Ilya Tupitsyn2, and Günter Plunien1 — 1Institut für Theoretische Physik, TU Dresden — 2St. Petersburg State University, Russia
Recent progress in ab initio QED calculations of the g factor of Li-like ions will be reported. The one- and two-photon exchange as well as the screened radiative corrections have been rigorously evaluated within an extended Furry picture, which includes a local screening potential in the unperturbed Hamiltonian. In addition, a special scheme, which considerably accelerates the partial-wave expansion convergence, has been employed for the evaluation of the screened radiative corrections. As a result, the theoretical accuracy for the g factor of Li-like ions has been significantly increased for all values of Z.