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arXiv · 1112.3273

Attosecond streaking of correlated two-electron transitions in helium

Renate Pazourek·Stefan Nagele·Johannes Feist·Joachim Burgdörfer
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Abstract

We present fully ab initio simulations of attosecond streaking for ionization of helium accompanied by shake-up of the second electron. This process represents a prototypical case for strongly correlated electron dynamics on the attosecond timescale. We show that streaking spectroscopy can provide detailed information on the Eisenbud-Wigner-Smith time delay as well as on the infrared field dressing of both bound and continuum states. We find a novel contribution to the streaking delay that stems from the interplay of electron-electron and infrared-field interactions in the exit channel. We quantify all the contributions with attosecond precision and provide a benchmark for future experiments.

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Renate Pazourek, Stefan Nagele, Johannes Feist, Joachim Burgdörfer. 2011-12-14. Attosecond streaking of correlated two-electron transitions in helium. https://doi.org/10.1103/physrevlett.108.163001

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