Numerical attoclock on atomic and molecular hydrogen
Abstract
Numerical attoclock is a theoretical model of attosecond angular streaking driven by a very short, nearly a single oscillation, circularly polarized laser pulse. The reading of such an attoclock is readily obtained from a numerical solution of the time-dependent Schr\"odinger equation as well as a semi-classical trajectory simulation. By making comparison of the two approaches, we highlight the essential physics behind the attoclock measurements. In addition, we analyze the predictions of the Keldysh-Rutherford model of the attoclock [Phys. Rev. Lett. 121, 123201 (2018)]. In molecular hydrogen, we highlight a strong dependence of the width of the attoclock angular peak on the molecular orientation and attribute it to the two-center electron interference. This effect is further exemplified in the weakly bound neon dimer.
Keywords
Cite
@article{arxiv.1812.09386,
title = {Numerical attoclock on atomic and molecular hydrogen},
author = {Vladislav V. Serov and Alexander W. Bray and Anatoli S. Kheifets},
journal= {arXiv preprint arXiv:1812.09386},
year = {2019}
}
Comments
8 pages, 7 figures