Emission of primordial bosonic radiation during inflation

TL;DR

This paper investigates the emission of primordial bosonic radiation, including gravitons and photons, during power-law inflation using unified spinor field theory, revealing their wavelength growth and quantized action.

Contribution

It introduces a novel application of unified spinor field theory to analyze bosonic emissions during inflation, providing new insights into their quantum properties.

Findings

Gravitons and photons are emitted with wavelengths increasing with the Hubble radius.

The quantized action of these bosons is a fraction of the Planck constant.

Wavelengths scale as λ_{Ph} ∼ a/H during inflation.

Abstract

We study the emission of neutral massless $(1, 2)\hbar$-spin bosons during power-law inflation using unified spinor field theory. We shows that during inflation gravitons and photons were emitted with wavelengths (on physical coordinates) that increase as the Hubble radius: $\lambda_{Ph} \sim a/H$. The quantised action related to these bosons is calculated and results to be a fraction of the Planck constant.