Nonlinear dynamics of recollisions in the double ionization processes of atoms in strong fields

TL;DR

This paper explores the nonlinear dynamics of electron-electron recollisions in double ionization of atoms under strong laser fields, using a symplectic map to analyze energy exchange and phase space organization.

Contribution

It introduces a detailed analysis of the nonlinear properties of a symplectic map modeling electron recollisions, linking dynamical behavior to phase space structure and statistical outcomes.

Findings

Identification of nonlinear features influencing recollision dynamics

Connection between phase space organization and ionization probabilities

Insights into energy exchange mechanisms during electron collisions

Abstract

Double ionization processes triggered by intense linearly polarized laser fields have revealed the paramount role of electron-electron collisions. It has been shown that the correlated dynamics of such electronic collisions can be modeled by a two dimensional symplectic map which captures the bare essentials of the energy exchange processes occurring during a recollision between the two electrons. We investigate linear and nonlinear properties of this map and connect them to the dynamical organization of phase space and related statistical data