Constraints on the Self-Gravity of Radiation Pressure via Big Bang Nucleosynthesis

TL;DR

This paper uses big bang nucleosynthesis data to test the non-Newtonian self-gravity of radiation pressure, providing a direct test of a key aspect of general relativity in the early universe.

Contribution

It introduces constraints on the self-gravity of radiation pressure during the early universe, testing non-Newtonian effects predicted by general relativity.

Findings

Constraints are consistent with general relativity predictions.

Limits on the self-gravity of radiation pressure are established.

Provides a novel test of gravity in the early universe.

Abstract

Using standard big-bang nucleosynthesis and present, high-precision measurements of light element abundances, we place constraints on the self-gravity of radiation pressure in the early universe. The self-gravity of pressure is strictly non-Newtonian, and thus the constraints we set are a direct test of this aspect of general relativity.