We present a theoretical approach for ab initio calculations of the one-loop QED corrections to energy levels of heavy diatomic quasimolecules. This approach is based on the partial-wave expansion of the molecular wave and Green's functions in the basis of monopole solutions, written in spherical coordinates. By using so-generated molecular functions, we employ the existing atomic-physics techniques to evaluate the self-energy and vacuum-polarization corrections. In order to illustrate the application of our method, we perform detailed calculations of the Dirac energy and QED corrections for the 1σg ground state of homonuclear U2183+ and heteronuclear U-Pb173+ and Bi-Au161+ quasimolecules.
Themenbereich der Metrologie
Zeit und Frequenz
Zitierung
Artemyev, A. N., Surzhykov, A., & Yerokhin, V. A. (2022). Ab initio QED calculations in diatomic quasimolecules. Physical Review A, 106(1), 1–9. https://doi.org/10.1103/PhysRevA.106.012813
