Elliptical Trajectories in Nonsequential Double Ionization

TL;DR

This paper demonstrates that nonsequential double ionization can occur with elliptical and circular polarization using a classical ensemble approach, revealing recollision via elliptical trajectories as the key mechanism.

Contribution

It introduces a classical ensemble method to predict nonsequential double ionization with elliptical polarization, highlighting the role of elliptical trajectories in recollision processes.

Findings

Nonsequential double ionization occurs with elliptical and circular polarization.

Recollision is the fundamental mechanism enabling ionization.

Elliptical trajectories facilitate recollision in these polarization states.

Abstract

Using a classical ensemble method, nonsequential double ionization is predicted to exist with elliptical and circular polarization. Recollision is found to be the underlying mechanism and it is only possible via elliptical trajectories.