A natural theory of dark energy

TL;DR

This paper introduces a novel mechanism based on the clockwork model that naturally produces a light dark energy field with a Hubble scale mass, derived from high-scale couplings and embedded in supergravity.

Contribution

It presents a new clockwork-based framework for dark energy, explicitly embedded in supergravity, with alternative braneworld interpretation.

Findings

Successfully generates a light dark energy field from high-scale couplings.

Provides explicit embedding in type IIA supergravity.

Offers an alternative braneworld interpretation.

Abstract

We propose a mechanism that generates a naturally light dark energy field (with Hubble scale mass), starting from a theory with exclusively high scale (Planckian) couplings. It is derived from the clockwork model, with ${\cal O}(100)$ scalar fields interacting among themselves as well as with a 4-form field strength. We explicitly embed our model in type IIA supergravity. We also give an alternative interpretation in a braneworld set-up.