Emergence of space and cosmic evolution based on entropic force

TL;DR

This paper introduces a cosmological model based on entropic force and emergence of space, explaining universe's age and acceleration, and compares its predictions with the standard Lambda Cold Dark Matter model.

Contribution

It develops a new dynamic equation incorporating entropic force effects and quantum gravity, providing an alternative explanation for cosmic acceleration.

Findings

Model explains universe's age and acceleration effectively.

Derived luminosity distance-redshift relation matches observations.

Comparison shows consistency with Lambda Cold Dark Matter model.

Abstract

In this paper, we propose a model in which an additional pressure due to the effects of the entropic force is added to the ideal fluid. Furthermore, we obtain the dynamic equation in the FRW universe which contains the quantum gravitational effects based on the description of entropic force and emergence of space. Our model can well explain the age of the universe and the effect of the current accelerating expansion. We give the relation between the luminosity distance and the redshift factor, and compare this relation with that of lambda cold dark matter model($\Lambda CDM$ model).