Is dark energy from cosmic Hawking radiation?

TL;DR

This paper proposes that dark energy originates from cosmic Hawking radiation, which, despite its low temperature, could account for the observed acceleration of the universe if a Planck-scale cutoff exists.

Contribution

It introduces a novel hypothesis linking dark energy to Hawking radiation from cosmic horizons with a Planck-scale UV cutoff.

Findings

Radiation could have the correct magnitude to explain dark energy

The equation of state aligns with cosmological observations

A Planck-scale UV cutoff is essential for this model

Abstract

It is suggested that dark energy is the energy of the Hawking radiation from a cosmic horizon. Despite of its extremely low Gibbons-Hawking temperature, this radiation could have the appropriate magnitude $O(M_P^2 H^2)$ and the equation of state to explain the observed cosmological data if there is a Planck scale UV-cutoff, where $H$ is the Hubble parameter.