Creation of scalar and Dirac particles in the presence of a time varying electric field in an anisotropic Bianchi I universe

TL;DR

This paper investigates how scalar and Dirac particles are created in an anisotropic Bianchi I universe with a time-varying electric field, revealing thermal distribution behavior when electric interactions are ignored.

Contribution

It provides a detailed calculation of particle creation in an anisotropic cosmological background with electromagnetic fields, highlighting the thermal nature of the particle distribution.

Findings

Particle creation density computed for scalar and Dirac particles.

Particle distribution approaches thermal form without electric interaction.

Analysis specific to Bianchi I universe with time-varying electric field.

Abstract

In this article we compute the density of scalar and Dirac particles created by a cosmological anisotropic Bianchi type I universe in the presence of a time varying electric field. We show that the particle distribution becomes thermal when one neglects the electric interaction.