Interacting dark sector from intrinsic entropy couplings

arXiv:2603.10622 · astro-ph.CO, gr-qc, hep-th · Submitted 2026-03-11 · Read on arXiv

astro-ph.CO, gr-qc, hep-th

Submitted: 2026-03-11

Updated: 2026-06-24

Code: https://github.com/elsateixeira/class

Terminology

• Matter Power Spectrum — 10× in this paper · explained in 2 episodes
• Quintessence — 10× in this paper · explained in 2 episodes
• Clustering — 7× in this paper · explained in 2 episodes
• Momentum transfer — 5× in this paper · explained in 2 episodes
• Entrainment — 3× in this paper · explained in 2 episodes
• Anisotropy — 2× in this paper · explained in 3 episodes
• Conservation Laws — 2× in this paper · explained in 3 episodes
• Decoupling — 2× in this paper · explained in 2 episodes
• Phase Transitions — 2× in this paper · explained in 2 episodes
• Trace — 2× in this paper · explained in 2 episodes
• Cooperation — 1× in this paper · explained in 2 episodes
• Core — 1× in this paper · explained in 2 episodes
• Effective Field Theory (EFT) — 1× in this paper · explained in 2 episodes
• European Research Council — 1× in this paper
• Nonminimal coupling — 1× in this paper · explained in 2 episodes
• Primordial Magnetic Fields — 1× in this paper · explained in 2 episodes
• Scaffolding — 1× in this paper · explained in 3 episodes

Sources

• Measurements of Omega and Lambda from 42 High-Redshift Supernovae
• Observational Evidence from Supernovae for an Accelerating Universe and a Cosmological Constant
• Everything You Always Wanted To Know About The Cosmological Constant Problem (But Were Afraid To Ask)
• A Comprehensive Measurement of the Local Value of the Hubble Constant with 1 km/s/Mpc Uncertainty from the Hubble Space Telescope and the SH0ES Team
• The Local Distance Network: a community consensus report on the measurement of the Hubble constant at 1% precision
• KiDS-1000 Cosmology: Multi-probe weak gravitational lensing and spectroscopic galaxy clustering constraints
• KiDS-Legacy: Cosmological constraints from cosmic shear with the complete Kilo-Degree Survey
• Dark Energy Survey Year 3 Results: Cosmological Constraints from Cluster Abundances, Weak Lensing, and Galaxy Clustering
• Tensions between the Early and the Late Universe
• Cosmology Intertwined: A Review of the Particle Physics, Astrophysics, and Cosmology Associated with the Cosmological Tensions and Anomalies
• The CosmoVerse White Paper: Addressing observational tensions in cosmology with systematics and fundamental physics
• Further understanding the interaction between dark energy and dark matter: current status and future directions
• Quintessence and the Rest of the World
• Coupled Quintessence
• Dark Matter and Dark Energy Interactions: Theoretical Challenges, Cosmological Implications and Observational Signatures
• Effective field theory of coupled dark energy and dark matter
• Scalar field dark matter with time-varying equation of state
• Scalar field dark matter and dark energy: a hybrid model for the dark sector
• Disformal invariance of second order tensor-scalar theories: framing the Horndeski action
• Transforming gravity: from derivative couplings to matter to second-order scalar-tensor theories beyond the Horndeski Lagrangian

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