Equations of motion for charged particles in strong laser fields

TL;DR

This paper derives equations of motion for charged particles in strong laser fields starting from the Dirac equation, incorporating the Abraham-Lorentz-Dirac radiation reaction term, in the classical limit.

Contribution

It introduces a derivation of classical equations of motion for charged particles in intense laser fields from quantum Dirac theory, including radiation reaction effects.

Findings

Derived equations of motion with radiation reaction term

Established the classical limit for slowly varying fields

Connected quantum Dirac framework to classical particle dynamics

Abstract

Starting from the Dirac equation coupled to a classical radiation field a set of equations of motion for charged quasi-particles in the classical limit for slowly varying radiation and matter fields is derived. The radiation reaction term derived in the paper is the Abraham-Lorentz-Dirac term.