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Dataset published within the framework of the project
Authors: Alba de las Heras, Luis Plaja, Carlos Hernández-García
Description: We provide results of the numerical integration of the one-dimensional Time-Dependent Schrödinger Equation (TDSE) of the helium atom in the interaction with a strong electromagnetic field. We compare different theoretical models: (i) Two Active Electrons (TAE), which is the exact 1D description of the He atom, (ii) Idle Electron model (IDL), considering twoelectron correlation, and only one electron interacting with the external field, (iii) Single-Active Electron approximation (SAE), and (iv) the exact 1D description of the helium cation (He+). The methodology and data interpretation are publicly available in the reference paper. Concretely this dataset contains:
- High-order harmonic spectra for different wavelengths (400 nm-1030 nm) and peak intensities ((1.6 – 10) x 1014 W/cm2) of the driving laser field.
- Excited atomic transitions after the laser pulse (515 nm wavelength and 1.6 x 1014 W/cm2 peak intensity) in the TAE and IDL descriptions.
- Energy levels of the He atom (TAE) and the cation He+.
- Wavefunction of the second excited state of He.
- One-electron energy dependence on the position of a secondary electron.
Citation: de las Heras, Alba; Plaja, Luis; Hernández-García, Carlos (2021): Datadocument_PRR2020. figshare. Dataset. https://doi.org/10.6084/m9.figshare.15188049.v1
Keywords: Atomic Physics, Nonlinear Optics, Computational Physics, Strong-Field phenomena, High-order harmonic generation, electron-electron correlation, Time-Dependent Schrödinger Equation, Helium atom
Date of publication: 18/08/2021
Type of license: CC BY 4.0
Reference paper: de las Heras, A., Hernández-García, C., & Plaja, L. (2020). Spectral signature of back reaction in correlated electron dynamics in intense electromagnetic fields. Physical Review Research, 2(3), 033047. https://doi.org/10.1103/PhysRevResearch.2.033047