Accelerating Universes from Short-Range Interactions

TL;DR

This paper proposes that short-range particle interactions can cause accelerated expansion phases in the universe, offering an alternative perspective to traditional dark energy models.

Contribution

It introduces a novel mechanism where short-range interactions induce cosmic acceleration, applicable to both early and potentially current universe scenarios.

Findings

Short-range interactions can drive early universe acceleration.

The concept of 'shielded gravity' may explain current acceleration.

A new framework for understanding cosmic expansion mechanisms.

Abstract

We show that short-range interactions between the fundamental particles in the universe can drive a period of accelerated expansion. This description fits the early universe. In the present day universe, if one postulates short-range interactions or a sort of "shielded gravity", the picture may repeat.