A Self-Organized Critical Universe

TL;DR

This paper proposes a model of the universe as a self-organized critical system, where it naturally evolves to a fractal, scale-invariant state that explains certain cosmological phenomena.

Contribution

It introduces a novel framework modeling the universe's evolution as a self-organized critical system with fractal metric fluctuations.

Findings

Universe reaches a critical state independent of initial conditions

Metric fluctuations exhibit self-similar fractal power spectra

Early universe metric fluctuations resolve the horizon problem

Abstract

A model of the universe as a self-organized critical system is considered. The universe evolves to a state independently of the initial conditions at the edge of chaos. The critical state is an attractor of the dynamics. Random metric fluctuations exhibit noise without any characteristic length scales, and the power spectrum for the fluctuations has a self-similar fractal behavior. In the early universe, the metric fluctuations smear out the local light cones removing the horizon problem.