An ecological approach to problems of Dark Energy, Dark Matter, MOND and Neutrinos

TL;DR

This paper proposes an interdisciplinary, unified framework suggesting that dark matter, dark energy, and modified gravity are interconnected through a self-interacting oscillating field, challenging traditional separate-sector models.

Contribution

It introduces a novel approach that links all dark sectors via a single dark fluid, moving beyond ad hoc sector divisions and explaining observed coincidences.

Findings

Data suggests dark sectors are interconnected by a self-interacting oscillating field.

Unified dark fluid model accounts for dark matter, dark energy, and modified gravity effects.

Interdisciplinary approach explains several cosmological coincidences.

Abstract

Modern astronomical data on galaxy and cosmological scales have revealed powerfully the existence of certain dark sectors of fundamental physics, i.e., existence of particles and fields outside the standard models and inaccessible by current experiments. Various approaches are taken to modify/extend the standard models. Generic theories introduce multiple de-coupled fields A, B, C, each responsible for the effects of DM (cold supersymmetric particles), DE (Dark Energy) effect, and MG (Modified Gravity) effect respectively. Some theories use adopt vanilla combinations like AB, BC, or CA, and assume A, B, C belong to decoupled sectors of physics. MOND-like MG and Cold DM are often taken as opposite frameworks, e.g. in the debate around the Bullet Cluster. Here we argue that these ad hoc divisions of sectors miss important clues from the data. The data actually suggest that the physics of all dark sectors is likely linked together by a self-interacting oscillating field, which governs a chameleon-like dark fluid, appearing as DM, DE and MG in different settings. It is timely to consider an interdisciplinary approach across all semantic boundaries of dark sectors, treating the dark stress as one identity, hence accounts for several "coincidences" naturally.