Particle mixing, flavor condensate and dark energy

TL;DR

This paper proposes that neutrino and quark mixing create a vacuum condensate acting as dark energy, with its current value constrained by Lorentz invariance breaking.

Contribution

It introduces a novel connection between particle mixing-induced vacuum condensates and dark energy, providing a potential explanation for the cosmological constant.

Findings

Vacuum condensates from particle mixing can mimic dark energy.

The dark energy value is constrained by Lorentz invariance breaking.

The model aligns with current cosmological observations.

Abstract

The mixing of neutrinos and quarks generate a vacuum condensate that, at the present epoch, behaves as a cosmological constant. The value of the dark energy is constrained today by the very small breaking of the Lorentz invariance.