There is no coincidence after all!

TL;DR

This paper proposes that light bosonic Dark Matter forms a Bose-Einstein condensate in the early Universe, which naturally leads to a Dark Energy density that explains the coincidence problem.

Contribution

It introduces a novel mechanism linking bosonic Dark Matter condensates to Dark Energy, addressing the coincidence problem.

Findings

Dark Matter as light bosons forms a Bose-Einstein condensate

Condensate induces a Dark Energy density of similar magnitude

Provides a natural explanation for the coincidence problem

Abstract

We show that if Dark Matter is made up of light bosons, they form a Bose-Einstein condensate in the early Universe. This in turn naturally induces a Dark Energy of approximately equal density and exerting negative pressure.This explains the so-called coincidence problem.