A simple toy model for a unified picture of dark energy, dark matter, and inflation

Abstract

A specific scale factor in Robertson-Walker metric with the prospect of giving the overall cosmic history in a unified picture roughly is considered. The corresponding energy-momentum tensor is identified as that of two scalar fields where one plays the roles of both inflaton and dark matter while the other accounts for dark energy. A preliminary phenomenological analysis gives an order of magnitude agreement with observational data. The resulting picture may be considered as a first step towards a single model for all epochs of cosmic evolution.

25 pages. The model is given in 3 pages. The rest is compatibility check with observations and supplementary material

References in corpus (5)

• Dynamics of dark energy
• Spectra and Light Curves of Six Type Ia Supernovae at 0.511 < z < 1.12 and the Union2 Compilation
• When did cosmic acceleration start? How fast was the transition?
• When Did Cosmic Acceleration Start ?
• Hybrid Quintessential Inflation

Cited by in corpus (1)

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