# Emergent Dark Energy in Classical Channel Gravity with Matter

## TL;DR

This paper explores how a classical-quantum gravity interaction model leads to emergent dark energy-like behavior in cosmology, resulting in a universe dominated by vacuum solutions at late times, with current observations unable to constrain it.

## Contribution

It extends the Classical Channel Model of Gravity to cosmology, showing emergent dark energy behavior due to energy non-conservation from classical-quantum interactions.

## Key findings

- Emergent dark fluid mimics curvature at late times
- Late-time universe dominated by vacuum solutions
- Current observations do not constrain the model

## Abstract

Motivated by the recent increased interest in energy non-conserving models in cosmology, we extend the analysis of the cosmological consequences of the Classical Channel Model of Gravity (CCG). This model is based on the classical-quantum interaction between a test particle and a metric (classical) and results in a theory with a modified Wheeler-deWitt equation that in turn leads to non conservation of energy. We show that CCG applied to a cosmological scenario with primordial matter leads to an emergent dark fluid that at late times behaves as a curvature term in the Friedmann equations, showing that the late time behaviour is always dominated by the vacuum solutions. We discuss possible observational constraints for this model and that, in its current formulation, CCG eludes any meaningful constraints from current observations.