Relativistic Quantum Kinetic Theory: Higher order contributions in assisted Schwinger pair production

TL;DR

This paper advances relativistic quantum kinetic theory by incorporating higher order contributions, enhancing understanding of particle production in ultra-high intensity quantum electrodynamics, especially in the context of the assisted Schwinger effect.

Contribution

It reorganizes relativistic quantum transport equations for Abelian plasmas and integrates a perturbative expansion to explore spectral features of particle production.

Findings

Expanded kinetic theory scope for spectral analysis

Enhanced understanding of assisted Schwinger effect

Framework applicable to non-equilibrium quantum systems

Abstract

Quantum kinetic theory is an important tool for studying non-equilibrium, non-perturbative and non-linear interactions within an open quantum system, and as such is able to provide an unprecedented view on particle production in the relativistic, ultra-high intensity regime of quantum electrodynamics. By re-organising the relativistic quantum transport equations for Abelian plasmas and integrating them with a perturbative expansion, we significantly expand the scope for kinetic theories to further elucidate the peculiarities of particle production at a spectral level. Keywords: Assisted Schwinger effect, Strong-field quantum electrodynamics, relativistic quantum transport, quantum kinetic theory, non-equilibrium quantum many-body physics.