Eur. Phys. J. C (2014) 74: 3066
https://doi.org/10.1140/epjc/s10052-014-3066-1

Regular Article - Theoretical Physics

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

Department of Physics, İzmir Institute of Technology Gülbahçe Köyü, Urla, İzmir, 35430, Turkey

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Received: 30 July 2014
Accepted: 3 September 2014
Published online: 23 September 2014

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 the Robertson–Walker metric. This scheme is illustrated through a toy model that has the prospect of constituting a basis for a realistic model.