Reassessing Evidence for Dark-Sector Interactions with Dynamical Dark Energy and DESI DR2

arXiv:2609.03062 · astro-ph.CO, gr-qc · Submitted 2026-09-02 · Read on arXiv

astro-ph.CO, gr-qc

Submitted: 2026-09-02

Updated: 2026-09-02

Terminology

• Clustering — 15× in this paper · explained in 2 episodes
• Degeneracy — 9× in this paper · explained in 3 episodes
• Abundance — 8× in this paper · explained in 1 episode
• Matter Power Spectrum — 7× in this paper · explained in 2 episodes
• Quintessence — 5× in this paper · explained in 2 episodes
• Gravitational Lensing — 4× in this paper · explained in 2 episodes
• Momentum transfer — 2× in this paper · explained in 2 episodes
• Calibration — 1× in this paper · explained in 7 episodes
• Hubble Tension — 1× in this paper · explained in 9 episodes
• Trace — 1× in this paper · explained in 2 episodes

Sources

• Coupled Dark Energy and Dark Matter for DESI: An Effective Guide to the Phantom Divide
• Generalizing the CPL Parametrization through Dark Sector Interaction
• Constraints on Coupled Dark Energy in the DESI Era
• Updated constraints on interacting dark energy: A comprehensive analysis using multiple CMB probes, DESI DR2, and supernovae observations
• Dark Energy in the DESI Era: A Brief Review of Evidence, Beyond- CDM Interpretations, and Tensions
• Robust Preference for Dark Sector Interactions
• The Mirage of w=-1
• Coupled quintessence with a potential from supergravity exhibits sign-changing interaction
• Phantom-Divide Crossing in Exponentially Coupled Quintessence and the Role of Neutrino-Mass Freedom
• The cosmon model for an asymptotically vanishing time-dependent cosmological ``constant''

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