Cosmology in the Universe with distance dependent Lorentz-violating bakground

TL;DR

This paper explores how a redshift-dependent Lorentz-violating background influences cosmological evolution, including inflation and dark energy, revealing its dominant role at large distances.

Contribution

It introduces a model with a redshift-dependent Lorentz-violating background affecting inflation and dark energy phases in cosmology.

Findings

Lorentz-violating background impacts inflationary dynamics

Dark energy regime dominated by Lorentz violation at low redshifts

Provides a unified framework for early and late universe evolution

Abstract

We consider a cosmological setup with the inflaton field in the presence of a redshift dependent Lorentz-violating time-like background to address the inflationary regime and other phases of the Universe. We also show that the regime of dark energy at large distances (low redshifts) is essentially dominated by the presence of the Lorentz-violating background.