Cosmological Particle Creation in the Presence of Lorentz Violation

TL;DR

This paper investigates how Lorentz violation influences cosmological particle creation, providing an exactly solvable model to analyze spectral properties and their dependence on space-time expansion.

Contribution

It introduces a solvable model for studying particle creation in Lorentz-violating cosmology, detailing spectral characteristics and their variation with expansion parameters.

Findings

Spectral properties of particle creation are derived.

Particle creation spectrum varies with expansion rate and Lorentz violation.

Model provides insights into Lorentz violation effects on cosmological phenomena.

Abstract

In recent years, the effects of Lorentz symmetry breaking in cosmology has attracted considerable amount of attention. In cosmological context several topics can be affected by Lorentz violation,e.g., inflationary scenario, CMB, dark energy problem and barryogenesis. In this paper we consider the cosmological particle creation due to Lorentz violation (LV). We consider an exactly solvable model for finding the spectral properties of particle creation in an expanding space-time exhibiting Lorentz violation. In this model we calculate the spectrum and its variations with respect to the rate and the amount of space-time expansion.