Kinetics of Photon Radiation off an e-e+ Plasma created from the Vacuum in a Strong Laser Field

TL;DR

This paper investigates photon emission from an electron-positron plasma created by a strong laser field, revealing a flicker noise spectrum that is more detectable in gamma-ray frequencies than optical.

Contribution

It introduces a kinetic theory model for photon radiation in vacuum-created e-e+ plasmas, highlighting a unique 1/k flicker noise spectrum.

Findings

Photon spectrum follows a 1/k flicker noise pattern.

Effect is negligible in optical but significant in gamma-ray range.

Secondary photon emission is theoretically predicted from vacuum-created plasmas.

Abstract

We consider the one-photon annihilation mechanism in a electron - positron quasiparticle plasma (EPP) created from the vacuum in a strong subcritical laser field due to the dynamical Schwinger mechanism. On the basis of a kinetic theory approach we show that the secondary photons have a radiation spectrum proportional to 1/k (flicker noise). This effect is very small for EPP excitations in the optical spectrum but can reach quite observable values in the gamma - ray region.