Entropic cosmology: a unified model of inflation and late-time acceleration

TL;DR

This paper proposes a holographic cosmological model with two screens that unifies inflation and late-time acceleration, fitting observational data and incorporating quantum corrections.

Contribution

It introduces a novel holographic model with two screens that explains both early inflation and late acceleration within a unified framework.

Findings

Model fits supernova data well

Predicts holographic inflation at high energies

Achieves late-time acceleration in a unified manner

Abstract

Holography is expected as one of the promising descriptions of quantum general relativity. We present a model for a cosmological system involving two holographic screens and find that their equilibrium exactly yields a standard Friedmann-Robertson-Walker universe. We discuss its cosmological implications by taking into account higher order quantum corrections and quantum nature of horizon evaporation. We will show that this model could give rise to a holographic inflation at high energy scales and realize a late-time acceleration in a unified approach. We test our model from the SN Ia observations and find it can give a nice fit to the data.