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arXiv · 1311.5742

Interaction effects on dynamical localization in driven helium

Felix Jörder·Klaus Zimmermann·Alberto Rodriguez·Andreas Buchleitner
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Abstract

Dynamical localization prevents driven atomic systems from fast fragmentation by hampering the excitation process. We present numerical simulations within a collinear model of microwave-driven helium Rydberg atoms and prove that dynamical localization survives the impact of electron-electron interaction, even for doubly excited states in the presence of fast autoionization. We conclude that the effect of electron-electron repulsion on localization can be described by an appropriate rescaling of the atomic level density and of the external field with the strength of the interaction.

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Felix Jörder, Klaus Zimmermann, Alberto Rodriguez, Andreas Buchleitner. 2014-08-22. Interaction effects on dynamical localization in driven helium. https://doi.org/10.1103/physrevlett.113.063004

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