Attosecond Coherent Electron Motion in Auger-Meitner Decay
Chemical Physics
2022-02-02 v1
Abstract
In quantum systems, coherent superpositions of electronic states evolve on ultrafast timescales (few femtosecond to attosecond, 1 as = 0.001 fs = 10^{-18} s), leading to a time dependent charge density. Here we exploit the first attosecond soft x-ray pulses produced by an x-ray free-electron laser to induce a coherent core-hole excitation in nitric oxide. Using an additional circularly polarized infrared laser pulse we create a clock to time-resolve the electron dynamics, and demonstrate control of the coherent electron motion by tuning the photon energy of the x-ray pulse. Core-excited states offer a fundamental test bed for studying coherent electron dynamics in highly excited and strongly correlated matter.
Cite
@article{arxiv.2105.08854,
title = {Attosecond Coherent Electron Motion in Auger-Meitner Decay},
author = {Siqi Li and Taran Driver and Philipp Rosenberger and Elio G. Champenois and Joseph Duris and Andre Al-Haddad and Vitali Averbukh and Jonathan C. T. Barnard and Nora Berrah and Christoph Bostedt and Philip H. Bucksbaum and Ryan Coffee and Louis F. DiMauro and Li Fang and Douglas Garratt and Averell Gatton and Zhaoheng Guo and Gregor Hartmann and Daniel Haxton and Wolfram Helml and Zhirong Huang and Aaron C. LaForge and Andrei Kamalov and Jonas Knurr and Ming-Fu Lin and Alberto A. Lutman and James P. MacArthur and Jon P. Marangos and Megan Nantel and Adi Natan and Razib Obaid and Jordan T. O'Neal and Niranjan H. Shivaram and Aviad Schori and Peter Walter and Anna Li Wang and Thomas J. A. Wolf and Zhen Zhang and Matthias F. Kling and Agostino Marinelli and James P. Cryan},
journal= {arXiv preprint arXiv:2105.08854},
year = {2022}
}