Cord Arnold
Koordinator för Mötesplats Rydbergseminarier
Probing electronic decoherence with high-resolution attosecond photoelectron interferometry
Författare
Summary, in English
Abstract: Quantum coherence plays a fundamental role in the study and control of ultrafast dynamics in matter. In the case of photoionization, entanglement of the photoelectron with the ion is a well-known source of decoherence when only one of the particles is measured. Here, we investigate decoherence due to entanglement of the radial and angular degrees of freedom of the photoelectron. We study two-photon ionization via the 2s2p autoionizing state in He using high spectral resolution photoelectron interferometry. Combining experiment and theory, we show that the strong dipole coupling of the 2s2p and 2p2 states results in the entanglement of the angular and radial degrees of freedom. This translates, in angle-integrated measurements, into a dynamic loss of coherence during autoionization. Graphic Abstract: [Figure not available: see fulltext.].
Avdelning/ar
- Atomfysik
- Kemisk fysik
- NanoLund: Centre for Nanoscience
- Synkrotronljusfysik
- LTH profilområde: Avancerade ljuskällor
- LTH profilområde: Nanovetenskap och halvledarteknologi
Publiceringsår
2022-07
Språk
Engelska
Publikation/Tidskrift/Serie
European Physical Journal D
Volym
76
Issue
7
Länkar
Dokumenttyp
Artikel i tidskrift
Förlag
EDP Sciences
Ämne
- Atom and Molecular Physics and Optics
Status
Published
Projekt
- Controlling the photoelectric effect in real-time
ISBN/ISSN/Övrigt
- ISSN: 1434-6060