Particle creation in cosmological space-time by a time-dependent electric field

TL;DR

This paper investigates how a time-dependent electric field influences particle creation in an anisotropic Bianchi I universe, revealing thermal distribution emergence due to electric interactions related to the Ricci scalar.

Contribution

It introduces a semi-classical method to compute particle creation in anisotropic cosmological models with dynamic electric fields, highlighting the thermalization effect linked to curvature.

Findings

Particle density calculated for Bianchi I universe

Electric field induces thermal particle distribution

Particle creation depends on Ricci scalar interaction

Abstract

In this work, we calculate the particle creation density in a cosmological anisotropic Bianchi I universe, by solving the Klein-Gordon and Dirac equations in the presence of a time-dependent electric field using the semi-classical method. We show that the particles distribution becomes thermal under the influence of the electric field when the electric interaction proportional to the Ricci scalar of curved space-time