Probing nonperturbative QED with optimally focused laser pulses

TL;DR

This paper investigates nonperturbative quantum electrodynamics (QED) phenomena using highly focused laser pulses called e-dipole pulses, exploring conditions for pair production, cascade avoidance, and experimental detection.

Contribution

It demonstrates that e-dipole pulses are optimal for studying nonperturbative QED effects in intense laser fields.

Findings

E-dipole pulses can produce measurable electron-positron pairs.

Conditions for avoiding cascade effects are identified.

E-dipole pulses are shown to be optimal for nonperturbative QED studies.

Abstract

We study nonperturbative pair production in intense, focused laser fields called e-dipole pulses. We address the conditions required, such as the quality of the vacuum, for reaching high intensities without initiating beam-depleting cascades, the number of pairs which can be created, and experimental detection of the created pairs. We find that e-dipole pulses offer an optimal method of investigating nonperturbative QED.