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Vacuum polarization and finite nuclear size effects in the two-photon decay of hydrogen-like ions
J. Sommerfeldt, R. A. Müller, A. V. Volotka +2
The total two-photon decay rate of hydrogen-like ions is studied using relativistic quantum electrodynamics. In particular, we analyse how finite nuclear size and QED vacuum polari…
Resonant sequential two-photon ionization of atoms by twisted and plane-wave light
V. P. Kosheleva, V. A. Zaytsev, R. A. Müller +2
We study the resonant sequential two-photon ionization of neutral atoms by a combination of twisted- and plane-wave light within a fully relativistic framework. In particular, the…
Generalized excitation of atomic multipole transitions by twisted light modes
S. A. -L. Schulz, A. A. Peshkov, R. A. Müller +5
A theoretical study is performed for the excitation of a single atom localized in the center of twisted light modes. Here we present the explicit dependence of excitation rates on…