Theoretical analysis of attosecond quantum beat spectroscopy of helium excited states. (August 2015)

• Record Type: Journal Article
• Authors: Zimmermann, T; Landsman, A S; Lucchini, M; Ludwig, A; Kasmi, L; Herrmann, J; Gallmann, L; Scrinzi, A; Keller, U
• Is Part Of: Journal of physics. Number 635(2015)
• Publication Date: 2015-08
• Subjects: Physics -- Congresses; 530.5
• DOI: 10.1088/1742-6596/635/9/092141
• Languages: English
• ISSNs: 1742-6588

Abstract

Synopsis: Photoelectron spectra measured in the attosecond quantum beat spectroscopy experiment on helium were computed solving the single-electron time-dependent Schrdinger equation. Final momenta of photoelectrons were obtained from the probability flux at the boundary of the simulation region using the time-dependent surface flux (t-SURFF) method [1]. Reaching a very good agreement with the experimental results, simulations allow for deeper understanding of processes underlying the quantum beating, which-way interference and polarization of the excited state.