Single scale factor for the universe from the creation of radiation and matter till the present

TL;DR

This paper introduces a scheme to unify the universe's evolution from radiation and matter creation to the present using a single scale factor, aiming to bridge early and late cosmological epochs.

Contribution

It proposes a novel scheme to incorporate matter and radiation creation into a unified cosmological model with a single scale factor.

Findings

Scheme successfully merges pre- and post-creation epochs

Toy model demonstrates potential for realistic cosmological modeling

Provides a basis for further development of unified cosmological theories

Abstract

A scheme for incorporating the creation of radiation and matter into the cosmological evolution is introduced so that it becomes possible to merge the times before and after the creation of radiation and matter in a single scale factor in Robertson-Walker metric. This scheme is illustrated through a toy model that has the prospect of constituting a basis for a realistic model.