A Model for Dark Energy decay

TL;DR

This paper proposes a non-perturbative decay model of dark energy into dark matter, addressing the coincidence problem with a lifetime compatible with the universe's age, and suggests supersymmetry as a natural framework.

Contribution

It introduces a novel decay mechanism for dark energy into dark matter within a field theory context, providing a potential solution to the coincidence problem.

Findings

The model achieves a mean lifetime compatible with the universe's age.

It offers a field theory-based mechanism for dark energy decay.

Supersymmetry is proposed as a natural setting for the model.

Abstract

We discuss a model of non perturbative decay of dark energy into hot and cold dark matter. This model provides a mechanism from the field theory to realize the energy transfer from dark energy into dark matter, which is the requirement to alleviate the coincidence problem. The advantage of the model is the fact that we accommodate a mean life compatible with the age of the universe. We also argue that supersymmetry is a natural set up, though not essential.