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arXiv · 2204.14082

Rydberg Atomic Antenna in Strongly Driven Multi-Electron Atoms

Stefanos Carlström·Jan Marcus Dahlström·Misha Yu Ivanov·Serguei Patchkovskii
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Abstract

We study the role of intermediate excitations of Rydberg states as an example of Kuchiev's "atomic antenna" in above-threshold ionization of xenon, in particular their effect on the coherence between the spin-orbit-split states of the ion. We focus on the case of a laser frequency close to resonant with the spin-orbit splitting, where a symmetry (parity) argument would preclude any coherence being directly generated by strong-field ionization. Using ab initio simulations of coupled multielectron spin-orbit dynamics in strong laser fields, we show how field-driven rescattering of the trapped Rydberg electrons introduces efficient coupling between the spin-orbit-split channels, leading to substantial coherences, exceeding 10 % for some photon energies.

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Stefanos Carlström, Jan Marcus Dahlström, Misha Yu Ivanov, Serguei Patchkovskii. 2022-04-29. Rydberg Atomic Antenna in Strongly Driven Multi-Electron Atoms. https://doi.org/10.1103/physreva.106.043114

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