Observation of nuclear wave-packet interference in ultrafast interatomic energy transfer

• Verfasst von: Han, Meng [VerfasserIn]
• Verfasst von: Fedyk, Jacqueline [VerfasserIn]
• Verfasst von: Ji, Jia-Bao [VerfasserIn]
• Verfasst von: Despré, Victor [VerfasserIn]
• Verfasst von: Kuleff, Alexander I. [VerfasserIn]
• Verfasst von: Wörner, Hans Jakob [VerfasserIn]
• Titel: Observation of nuclear wave-packet interference in ultrafast interatomic energy transfer
• Verf.angabe: Meng Han, Jacqueline Fedyk, Jia-Bao Ji, Victor Despré, Alexander I. Kuleff, and Hans Jakob Wörner
• E-Jahr: 2023
• Jahr: 23 June 2023
• Umfang: 6 S.
• Illustrationen: Illustrationen
• Fussnoten: Gesehen am 06.12.2023
• Titel Quelle: Enthalten in: Physical review letters
• Ort Quelle: College Park, Md. : APS, 1958
• Jahr Quelle: 2023
• Band/Heft Quelle: 130(2023), 25 vom: Juni, Artikel-ID 253202, Seite 1-6
• ISSN Quelle: 1079-7114
• DOI: doi:10.1103/PhysRevLett.130.253202
• Datenträger: Online-Ressource
• Sprache: eng
• K10plus-PPN: 1860924328

Abstract

We report the experimental observation of quantum interference in the nuclear wave-packet dynamics driving ultrafast excitation-energy transfer in argon dimers below the threshold of interatomic Coulombic decay (ICD). Using time-resolved photoion-photoion coincidence spectroscopy and quantum dynamics simulations, we reveal that the electronic relaxation dynamics of the inner-valence 3s hole on one atom leading to a 4s or 4p excitation on the other one is influenced by nuclear quantum dynamics in the initial state, giving rise to a deep, periodic modulation on the kinetic-energy-release (KER) spectra of the coincident Ar+−Ar+ ion pairs. Moreover, the time-resolved KER spectra show characteristic fingerprints of quantum interference effects during the energy-transfer process. Our findings pave the way to elucidating quantum-interference effects in ultrafast charge- and energy-transfer dynamics in more complex systems, such as molecular clusters and solvated molecules.