Cosmic Acceleration from Elementary Interactions

TL;DR

This paper proposes that elementary particle interactions, specifically attractive nuclear potentials, can produce negative pressure leading to cosmic acceleration, offering an alternative explanation for the universe's accelerated expansion.

Contribution

It introduces a mechanism where primordial nucleon interactions generate negative pressure, contributing to cosmic acceleration, using Mayer's cluster expansion technique.

Findings

Primordial nucleon interactions can produce negative pressure.

Attractive nuclear potentials may drive cosmic acceleration.

Negative pressure from elementary interactions offers an alternative to dark energy.

Abstract

It is possible to generate an accelerated period of expansion from reasonable potentials acting between the universe particle constituents. The pressure of primordial nucleons interacting via a simple nuclear potential is obtained via Mayer's cluster expansion technique. The attractive part of the potential engenders a negative pressure and may therefore be responsible for the cosmic acceleration.