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arXiv · 2202.06798

Continuous variable quantum state tomography of photoelectrons

Hugo Laurell·Daniel Finkelstein-Shapiro·Christoph Dittel·Chen Guo·Ron Demjaha·Mattias Ammitzböll·Robin Weissenbilder·Lana Neoričić·Sizuo Luo·Mathieu Gisselbrecht·Cord Arnold·Andreas Buchleitner·Tönu Pullerits·Anne L'Huillier·David Busto
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Abstract

We propose a continuous variable quantum state tomography protocol of electrons which result from the ionization of atoms or molecules by the absorption of extreme ultraviolet light pulses. Our protocol is benchmarked against a direct calculation of the quantum state of photoelectrons ejected from helium and argon in the vicinity of a Fano resonance. In the latter case, we furthermore distill ion-photoelectron entanglement due to spin-orbit splitting. This opens new routes towards the investigation of quantum coherence and entanglement properties on the ultrafast timescale.

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Hugo Laurell, Daniel Finkelstein-Shapiro, Christoph Dittel, Chen Guo, Ron Demjaha, Mattias Ammitzböll, Robin Weissenbilder, Lana Neoričić, Sizuo Luo, Mathieu Gisselbrecht, Cord Arnold, Andreas Buchleitner, Tönu Pullerits, Anne L'Huillier, David Busto. 2022-02-14. Continuous variable quantum state tomography of photoelectrons. https://doi.org/10.1103/physrevresearch.4.033220

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