A brief note on how to unify dark matter, dark energy, and inflation

TL;DR

This paper explores a unified model where inflation, dark energy, and dark matter are described by a single scalar field, the inflaton, identified as the sneutrino, with conditions to avoid cosmological problems.

Contribution

It proposes a unified scalar field model linking inflation, dark energy, and dark matter using the sneutrino, detailing conditions to avoid gravitino issues and plasma effects.

Findings

Identifies the sneutrino as the inflaton candidate.

Determines parameter ranges avoiding gravitino problems.

Provides conditions for the scalar field to unify cosmological phenomena.

Abstract

A scenario in which inflation, dark energy and dark matter can be unified into a single scalar field, the inflaton field $\phi$, is studied. The inflaton is identified with the sneutrino, the scalar partner of the heavy neutrino. We determine the conditions needed for avoiding the gravitino problem and not having negligible plasma effects and we obtain the allowed range for the sneutrino coupling.