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arXiv · 2210.00773

Complex-scaled ab initio QED approach to autoionizing states

V. A. Zaytsev·A. V. Malyshev·V. M. Shabaev
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Abstract

Ab initio method based on a complex-scaling approach and aimed at a rigorous QED description of autoionizing states is worked out. The autoionizing-state binding energies are treated nonperturbatively in $\alpha Z$ and include all the many-electron QED contributions up to the second order. The higher-order electron correlation, nuclear recoil, and nuclear polarization effects are taken into account as well. The developed formalism is demonstrated on the $LL$ resonances in heliumlike argon and uranium. The most accurate theoretical predictions for the binding energies are obtained.

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V. A. Zaytsev, A. V. Malyshev, V. M. Shabaev. 2022-10-03. Complex-scaled ab initio QED approach to autoionizing states. https://doi.org/10.1103/physreva.107.032801

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