Photon cluster excitation mechanism in an e-e+ plasma created from vacuum by a strong electromagnetic field

TL;DR

This paper investigates how strong electromagnetic fields induce electron-positron plasma creation from vacuum, emphasizing the dominant role of photon cluster mechanisms in multiphoton processes and analyzing the resulting particle distribution.

Contribution

It introduces a detailed analysis of photon cluster mechanisms in vacuum pair creation under strong laser fields, highlighting their dominance in multiphoton breakdown scenarios.

Findings

Photon cluster mechanism dominates EPP excitation in strong fields.

Distribution function of created particles analyzed and characterized.

Multiphoton processes are crucial in vacuum breakdown under intense electromagnetic fields.

Abstract

In the low density approximation of nonperturbative kinetic theory we investigate the vacuum creation of an electron-positron plasma (EPP) under the action of an external monochromatic "laser" electric field with the focus on multiphoton processes. We analyse in some detail the role of the photon cluster mechanism of EPP excitation and show that this mechanism plays the dominating role in the case when a large photon number from the external field reservoir takes part in the breakdown of the energy gap. We obtain the distribution function in this approximation and discuss its properties.