Realization of Power-Law Inflation & Variants via Variation of the Strong Coupling Constant

TL;DR

This paper proposes a model of power-law inflation driven by varying strong coupling constants, extending to multiple couplings with exponential potentials, some aligning with recent experimental data.

Contribution

It introduces a novel inflation model based on varying strong coupling constants and explores its variants that fit observational data.

Findings

Power-law inflation can be achieved via varying strong coupling constants.

Extended models with multiple couplings produce exponential potentials.

Some variants are consistent with Planck 2015 data.

Abstract

We present a model of power law inflation generated by variation of the strong coupling constant. We then extend the model to two varying coupling constants which leads to a potential consisting of a linear combination of exponential terms. Some variants of the latter may be self-consistent and can accommodate the experimental data of the Planck 2015 and other recent experiments.