Sensing ultrashort electronic coherent beating at conical intersections by single-electron pulses

Autor: Shahaf Asban, Daniel Keefer, Vladimir Y. Chernyak, Shaul Mukamel
Rok vydání: 2022
Předmět:
Zdroj: Proceedings of the National Academy of Sciences. 119
ISSN: 1091-6490
0027-8424
DOI: 10.1073/pnas.2205510119
Popis: Significance In a theoretical study, we present an ultrafast technique for probing time-dependent molecular charge densities. An ultrafast optical pump first brings the molecule into an electronic nonstationary state. This is followed by coherent inelastic scattering of a broadband single-electron probe pulse with a variable delay T , which is detected spectrally. The technique is applied to reveal phase-sensitive background-free coherent electron beating in the conical intersection passage in uracil and reveals the otherwise elusive coherent beating of strongly coupled electrons and nuclei.
Databáze: OpenAIRE