Late-Time Oscillating Quintessence in Light of DESI

arXiv:2606.24221 · astro-ph.CO, gr-qc, hep-th · Submitted 2026-06-23 · Read on arXiv

Jun-Qian Jiang, Mustafa A. Amin, Arman Shafieloo

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

Submitted: 2026-06-23

Comments: 6+4 pages, 8 figures

License: http://arxiv.org/licenses/nonexclusive-distrib/1.0/

Terminology

• Quintessence — 39× in this paper · explained in 2 episodes
• Integrated Sachs-Wolfe — 3× in this paper
• Robustness — 3× in this paper · explained in 5 episodes
• Calibration — 2× in this paper · explained in 7 episodes
• Hubble Tension — 2× in this paper · explained in 9 episodes
• Anisotropy — 1× in this paper · explained in 3 episodes
• Bayesian Framework — 1× in this paper · explained in 3 episodes
• Decoupling — 1× in this paper · explained in 2 episodes
• Department of Energy — 1× in this paper
• Universality Class — 1× in this paper · explained in 2 episodes

Sources

• Planck 2018 results. VI. Cosmological parameters
• DESI 2024 VI: Cosmological Constraints from the Measurements of Baryon Acoustic Oscillations
• DESI DR2 Results II: Measurements of Baryon Acoustic Oscillations and Cosmological Constraints
• Extended Dark Energy analysis using DESI DR2 BAO measurements
• Dynamical Dark Energy in light of the DESI DR2 Baryonic Acoustic Oscillations Measurements
• Evolving Dark Energy or Supernovae Systematics?
• Quintessence, Cosmic Coincidence, and the Cosmological Constant
• Dynamics of dark energy
• The Limits of Quintessence
• Could We Be Fooled about Phantom Crossing?
• Effective Phantom Dark Energy: What Cosmological Reconstruction Does and Does Not Imply
• Scale-Dependent Growth from a Transition in Dark Energy Dynamics
• Dynamical and Gravitational Instability of Oscillating-Field Dark Energy and Dark Matter
• Oscillons After Inflation
• Self-resonance after inflation: oscillons, transients and radiation domination
• Early Dark Energy Can Resolve The Hubble Tension
• Oscillating scalar fields and the Hubble tension: a resolution with novel signatures
• Solving the Coincidence Problem: Tracking Oscillating Energy
• Superconformal Inflationary $\alpha$-Attractors
• Monodromy in the CMB: Gravity Waves and String Inflation

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