Observation of Nuclear-wavepacket Interference in Ultrafast Inter-atomic Energy Transfer
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 hole on one atom leading to a or 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.
Keywords
Cite
@article{arxiv.2303.04844,
title = {Observation of Nuclear-wavepacket Interference in Ultrafast Inter-atomic Energy Transfer},
author = {Meng Han and Jacqueline Fedyk and Jia-Bao Ji and Victor Despré and Alexander I. Kuleff and Hans Jakob Wörner},
journal= {arXiv preprint arXiv:2303.04844},
year = {2023}
}
Comments
5 pages, 4 figures