Bimodal/Schizophrenic Neutrino As a Bridge between Inflation and Dark Energy

TL;DR

This paper explores a model linking inflation and dark energy through a bimodal neutrino framework within MSSM, involving a scalar cosmon field affecting neutrino mass and early universe phenomena.

Contribution

It introduces a novel bimodal neutrino model connecting inflation and dark energy with a scalar cosmon field influencing neutrino mass.

Findings

Neutrino mass varies with the scalar cosmon field.

Density perturbations from the cosmon field are negligible.

The model integrates inflation and dark energy in a unified framework.

Abstract

We consider the possibility to combine inflection point inflation and growing neutrino dark energy in a particular setup of bimodal/schizophrenic neutrino model in the framework of MSSM$\otimes U(1)_{B-L}$. In order to obtain a varying neutrino mass, we make an assumption that a soft mass of $\tilde{Z'}_{BL}$ depends on a scalar field which plays the role of a cosmon field. We also investigate the possible effects of the cosmon field in the early universe such as modulated reheating and found that the induced density perturbation is negligible.