Guiding-center motion for electrons in strong laser fields

Abstract

We consider the dynamics of electrons in combined strong laser and Coulomb fields. Under a timescale separation condition, we reduce this dynamics to a guiding-center framework. More precisely, we derive a hierarchy of models for the guiding-center dynamics based on averaging over the fast motion of the electron using Lie transforms. The reduced models we obtain describe well the different ionization channels, in particular, the conditions under which an electron is rescattered by the ionic core or is directly ionized. The comparison between these models highlights the models which are best suited for a qualitative and quantitative agreement with the parent dynamics.

References in corpus (3)

• Recollisions and correlated double ionization with circularly polarized light
• Ultrafast Molecular Imaging by Laser Induced Electron Diffraction
• Capturing photoelectron motion with guiding fictitious particles

Cited by in corpus (4)

• Envelope-driven recollisions triggered by an elliptically polarized laser pulse
• Inclusion of Coulomb effects in laser-atom interactions
• Nonadiabatic effects in the double ionization of atoms driven by a circularly polarized laser pulse
• Bogolyubov's averaging theorem applied to the Kramers-Henneberger Hamiltonian