A simple parameter-free one-center model potential for an effective one-electron description of molecular hydrogen
arXiv:0808.3106 · doi:10.1103/PhysRevA.78.042510
Abstract
For the description of an H2 molecule an effective one-electron model potential is proposed which is fully determined by the exact ionization potential of the H2 molecule. In order to test the model potential and examine its properties it is employed to determine excitation energies, transition moments, and oscillator strengths in a range of the internuclear distances, 0.8 < R < 2.5 a.u. In addition, it is used as a description of an H2 target in calculations of the cross sections for photoionization and for partial excitation in collisions with singly-charged ions. The comparison of the results obtained with the model potential with literature data for H2 molecules yields a good agreement and encourages therefore an extended usage of the potential in various other applications or in order to consider the importance of two-electron and anisotropy effects.
8 pages, 6 figures
References in corpus (3)
Cited by in corpus (10)
- Photoionization of few electron systems with a hybrid Coupled Channels approach
- Ionization of molecular hydrogen and deuterium by a frequency-doubled Ti:sapphire laser pulses
- Ionization behavior of molecular hydrogen in intense laser fields: Influence of molecular vibration and alignment
- Full two-electron calculations of antiproton collisions with molecular hydrogen
- Stopping power of antiprotons in H, H2, and He targets
- Collisions of antiprotons with hydrogen molecular ions
- Shapes of leading tunnelling trajectories for single-electron molecular ionization
- Collisions of low-energy antiprotons with molecular hydrogen: ionization, excitation and stopping power
- Accurate photoionisation cross section for He at non-resonant photon energies
- Interaction of antiprotons with Rb atoms and a comparison of antiproton stopping powers of the atoms H, Li, Na, K, and Rb