Oscillatory Universe, dark energy and general relativity

TL;DR

This paper investigates the oscillatory universe model within the framework of general relativity, highlighting how dark energy's dynamic equation of state influences cosmic oscillations and their lasting effects on cosmic evolution.

Contribution

It demonstrates that oscillations in the universe are compatible with dark energy models and that general relativity preserves the history of these oscillations through the scale factor.

Findings

Oscillations persist in the universe's evolution under dynamic dark energy.

General relativity retains the universe's oscillatory history in the scale factor.

Oscillatory effects influence the long-term cosmic evolution.

Abstract

The concept of oscillatory Universe appears to be realistic and buried in the dynamic dark energy equation of state. We explore its evolutionary history under the frame work of general relativity. We observe that oscillations do not go unnoticed with such an equation of state and that their effects persist later on in cosmic evolution. The `classical' general relativity seems to retain the past history of oscillatory Universe in the form of increasing scale factor as the classical thermodynamics retains this history in the form of increasing cosmological entropy.