Big Bang Nucleosynthesis Constraints on the Self-Gravity of Pressure
Saul Rappaport, Josiah Schwab, Scott Burles, Gary Steigman
TL;DR
This paper uses big bang nucleosynthesis data and light element measurements to test the non-Newtonian self-gravity of pressure predicted by general relativity, providing a direct cosmological validation.
Contribution
It offers the first direct observational constraints on the self-gravity of pressure in the early universe, testing a key aspect of general relativity.
Findings
Constraints support the non-Newtonian self-gravity of pressure
Results align with predictions of general relativity
Provides a new test of cosmological models
Abstract
Using big bang nucleosynthesis and present, high-precision measurements of light element abundances, we constrain 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 provide a direct test of this prediction of general relativity and of the standard, Robertson-Walker-Friedmann cosmology.
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