SAMOP 2023 – scientific programme

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A: Fachverband Atomphysik

A 10: Atomic Systems in External Fields

A 10.6: Talk

Tuesday, March 7, 2023, 12:30–12:45, F107

Relativistic strong-field ionization of hydrogen-like atomic systems in constant crossed electromagnetic fields — •Alexandra Eckey¹, Michael Klaiber², Alexander B. Voitkiv¹, and Carsten Müller¹ — ¹Heinrich-Heine-Universität Düsseldorf, Germany — ²Lochhofstraße 8, 78120 Furtwangen, Germany

We study relativistic strong-field ionization of hydrogen-like atoms or ions in a constant crossed electromagnetic field by formulating the transition amplitude within the strong-field approximation in the Goeppert-Mayer gauge, with initial and final electron states being described by the corresponding Dirac-Coulomb and Dirac-Volkov wave functions, respectively. By adapting an established method, Coulomb corrections to the electron motion during tunneling are included. We calculate total and energy-differential ionization rates in a wide range of atomic numbers and applied field strengths and compare them with predictions from other theories.