Probing electronic decoherence with high-resolution attosecond photoelectron interferometry
Author
Busto, David; Laurell, Hugo; Finkelstein-Shapiro, Daniel; Alexandridi, Christiana; Isinger, Marcus; Nandi, Saikat; Squibb, Richard J.; Turconi, Margherita; Zhong, Shiyang; Arnold, Cord L.; Feifel, Raimund; Gisselbrecht, Mathieu; Salières, Pascal; Pullerits, Tönu; Martín García, Fernando
Entity
UAM. Departamento de QuímicaPublisher
SpringerDate
2022-07-01Citation
10.1140/epjd/s10053-022-00438-y
The European Physical Journal C 76.7 (2022): 112
ISSN
1434-6044 (print); 1434-6052 (online)DOI
10.1140/epjd/s10053-022-00438-yProject
Gobierno de España. PID2019-105458RB-I00; Gobierno de España. SEV-2016-0686; Gobierno de España. CEX2018-000805-MEditor's Version
https://doi.org/10.1140/epjd/s10053-022-00438-ySubjects
Attoseconds; Autoionizing State; Decoherence; Dipole Coupling; Electronic Decoherence; High Resolution; High Spectral Resolution; Quantum Coherence; Two Photon Ionization; Ultra-Fast Dynamics; QuímicaRights
© The Author(s) 2022Abstract
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
Files in this item
Google Scholar:Busto, David
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Laurell, Hugo
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Finkelstein-Shapiro, Daniel
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Alexandridi, Christiana
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Isinger, Marcus
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Nandi, Saikat
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Squibb, Richard J.
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Turconi, Margherita
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Zhong, Shiyang
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Arnold, Cord L.
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Feifel, Raimund
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Gisselbrecht, Mathieu
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Salières, Pascal
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Pullerits, Tönu
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Martín García, Fernando
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Argenti, Luca
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L’Huillier, Anne
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