Cyclic Cosmology from the Little Rip

TL;DR

This paper explores whether a cyclic universe model based on the little rip scenario is feasible, demonstrating that causal patch separation at turnaround remains valid, making the little rip a suitable foundation for cyclic cosmology.

Contribution

It shows that the little rip can replace the big rip in cyclic models, maintaining causal patch separation and supporting cyclicity.

Findings

Causal patches at turnaround are valid for the little rip.

The little rip can serve as a basis for cyclic cosmology.

Cyclic models remain consistent under the little rip scenario.

Abstract

We revisit a cyclic cosmology scenario proposed in 2007 to examine whether its hypotheses can be sustained if the underlying big rip evolution, which was assumed there, is replaced by the recently proposed little rip. We show that the separation into causal patches at turnaround is generally valid for a little rip, and therefore conclude that the little rip is equally as suitable a basis for cyclicity as is the big rip.