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Use of Erfgau Potential for Simulations of Multielectron Dynamics in Intense Laser Pulses.

Yuki OrimoTakeshi SatoKenichi L Ishikawa
Published in: The journal of physical chemistry. A (2023)
We propose the use of the erfgau potential as a smooth alternative to the pure Coulomb potential between nuclei and electrons in simulating the dynamics of electrons within atoms and molecules driven by high-intensity laser pulses. Even without the sophistication of pseudopotentials, by utilizing a well-designed simple approximate potential, it is possible to make the simulations computationally less demanding while keeping accuracy. By employing the erfgau potential designed for the stationary state of hydrogen-like atoms, we demonstrate that it is possible to simulate not only the high harmonic generation from a hydrogen atom but also that of multielectron systems, including molecules.
Keyphrases
  • high intensity
  • molecular dynamics
  • human health
  • climate change
  • body composition
  • high resolution
  • mass spectrometry