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Numerical integration of the one-dimensional Time-Dependent Schrodinger Equation (TDSE) of the helium atom in the interaction with a strong electromagnetic field [Dataset]
Autor(es)
Materia
Atomic Physics
Nonlinear Optics
Computational Physics
Strong-Field phenomena
High-order harmonic generation
Electron-electron correlation
Time-Dependent Schrödinger Equation
Helium atom
Fecha de publicación
2021
Editor
Grupo de Aplicaciones Láser y Fotónica (ALF - USAL)
Resumen
[EN] We provide results of the numerical integration of the one-dimensional Time-Dependent Schr dinger 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 [1] A. de las Heras, C. Hern ndez-Garc a, and L. Plaja, "Spectral signature of back reaction in correlated electron
dynamics in intense electromagnetic fields", Phys. Rev. Res. 2, 033047 (2020).
Concretely this dataset contains:
- High-order harmonic spectra for different wavelengths (400 nm-1030 nm) and peak intensities ((1.6 – 10) 10!" W/
cm#) of the driving laser field.
- Excited atomic transitions after the laser pulse (515 nm wavelength and 1.6 10!" W/cm# 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.
Citado en
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. http://hdl.handle.net/10366/146876
URI
DOI
10.6084/m9.figshare.15188049.v1
Es parte de
Tabla de contenidos
The data is organized in .txt files with the following structure:
“Dataset_515nm_E0067_8cy_trap.txt” and “Dataset_515nm_E0067_8cy_sin2.txt” contain the high-order harmonic spectra in all the models calculated for a 8 cycle trapezoidal or sin2 envelope, 515 nm wavelength and peak intensity. This data corresponds to figures 1-3,7 in reference paper. The file includes a first line of headers indicating the data in each column: (c1) Frequency in atomic units for all the models except SAE, (c2) TAE spectra, (c3) Contribution of neutral He to the TAE spectra, (c4) Contribution of cation He+ to the TAE spectra, (c5) He+ exact spectra, (c6) IDL spectra, (c7) Frequency in atomic units for SAE, (c8) SAE spectra.
“Dataset_515nm_E012_8cy_trap.txt”, “Dataset_515nm_E017_8cy_trap”, “Dataset_400nm_E009_8cy_trap.txt”, “Dataset_515nm_E009_8cy_trap.txt”, “Dataset_800nm_E009_8cy_trap.txt”,“Dataset_1030nm_E009_8cy_trap.txt” contain the high harmonic spectra in all models except IDL. This data corresponds to Figs. 5-6 in reference paper. The filenames indicate the wavelength in nm and the amplitude in atomic units. The file is structured in columns: (c1) Frequency in atomic units for all the models except SAE, (c2) TAE spectra, (c3) Contribution of neutral He to the TAE spectra, (c4) Contribution of cation He+ to the TAE spectra, (c5) He+ exact spectra, (c6) Frequency in atomic units for SAE, (7) SAE spectra.
“Dataset_EnergyLevels_HeTAE.txt” and “DatasetEnergyLevels_HeION.txt” contain the energy levels obtained in the diagonalization of He TAE or He+ Hamiltonian (without laser field) in the 1D description. This data is displayed in Fig. 4(b) in reference paper.
“Dataset_ExcitedState_HeTAE.txt” contains the 2D array of the 2nd excited state of He, displayed in the inset of Fig. 4(c) in reference paper.
“Dataset_EnergyDependenceOnElectronPosition.txt” contains the one-electron energy as a function of the position of a secondary electron. It is calculated according to eq. (3) in reference paper.] and shown as a blue line in Fig. 4(c) in reference paper.
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