Inferring The Effective Single-Electron Dynamics in High Harmonic Generation from Time Dependent \textit{ab initio} Studies

POSTER

Abstract

We explore the spectrum and dynamics of the atomic and molecular HHG processes using the multi-configuration time dependent Hartree-Fock (MCTDHF) method in the context of noble gas atoms and homo-nuclear diatomic molecules. This multi-electron calculation reproduces experimentally observed spectra, and can be used to produce an effective single-electron time-dependent potential. This reduced effective potential in a many-electron system shows the effect of many-body dynamics in the presence of a strong field causes the system to depart from a single electron approximation.

Authors

  • Chen Zhang

    • Chemical Sciences and Ultrafast X-ray Science Laboratory, Lawrence Berkeley National Laboratory

  • Wei Cao

    • Chemical Science Division, Lawrence Berkeley National Lab

  • Dan Haxton

    • Chemical Sciences and Ultrafast X-ray Science Laboratory, Lawrence Berkeley National Laboratory

  • William McCurdy

    • Chemical Sciences and Ultrafast X-ray Science Laboratory, Lawrence Berkeley National Laboratory, Departments of Applied Science and Chemistry, Davis