Continuous-variable quantum state tomography of photoelectrons

Summary, in English

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 routes toward the investigation of quantum coherence and entanglement properties on the ultrafast timescale.

• Author: H. Laurell; D. Finkelstein-Shapiro; C. Dittel; C. Guo; R. Demjaha; M. Ammitzböll; R. Weissenbilder; L. Neoričić; S. Luo; M. Gisselbrecht; C. L. Arnold; A. Buchleitner; T. Pullerits; A. L'Huillier; D. Busto
• Department/s: Atomic Physics; Chemical Physics; NanoLund: Centre for Nanoscience; LTH Profile Area: Photon Science and Technology; Synchrotron Radiation Research; LTH Profile Area: Nanoscience and Semiconductor Technology
• Publishing year: 2022-07
• Language: English
• Publication/Series: Physical Review Research
• Volume: 4
• Issue: 3
• Links: http://dx.doi.org/10.1103/PhysRevResearch.4.033220
• Document type: Journal article
• Publisher: American Physical Society
• Topic: Atom and Molecular Physics and Optics
• Status: Published
• Project: Electronic coherence and correlation in attosecond photoionization dynamics; Attosecond chronoscopy of electron wave-packets probing entanglement and time-ordering of quantum processes
• ISBN/ISSN/Other: ISSN: 2643-1564