Attosecond streaking of correlated two-electron transitions in helium

Details Attosecond streaking of correlated two-electron transitions in helium Attosecond streaking of correlated two-electron transitions in helium

2011-12-14

arxiv.org/abs/1112.3273v1

Physics

Atomic Physics

5 pages, 4 figures

Scientific paper

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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