Gaussian process reconstruction of scalar field dynamics from recent cosmological data

arXiv:2608.24433 · astro-ph.CO · Submitted 2026-08-25 · Read on arXiv

astro-ph.CO

Submitted: 2026-08-25

Updated: 2026-08-25

Terminology

• Gaussian Process — 16× in this paper
• Higher-order derivatives — 9× in this paper · explained in 2 episodes
• Robustness — 5× in this paper · explained in 5 episodes
• Consistency — 4× in this paper · explained in 3 episodes
• Quintessence — 4× in this paper · explained in 2 episodes
• Calibration — 2× in this paper · explained in 7 episodes
• Dark Energy Spectroscopic Instrument — 2× in this paper
• Accuracy — 1× in this paper · explained in 1 episode
• Cosmic Microwave Background — 1× in this paper
• Decoupling — 1× in this paper · explained in 2 episodes
• Degeneracy — 1× in this paper · explained in 3 episodes
• Fine-Tuning — 1× in this paper · explained in 5 episodes
• Metallicity — 1× in this paper · explained in 3 episodes
• Over-smoothing — 1× in this paper · explained in 4 episodes
• Sparsity — 1× in this paper · explained in 4 episodes

Sources

• Observational Evidence from Supernovae for an Accelerating Universe and a Cosmological Constant
• Measurements of Omega and Lambda from 42 High-Redshift Supernovae
• The Complete Light-curve Sample of Spectroscopically Confirmed Type Ia Supernovae from Pan-STARRS1 and Cosmological Constraints from The Combined Pantheon Sample
• The Pantheon+ Analysis: Cosmological Constraints
• Union Through UNITY: Cosmology with 2,000 SNe Using a Unified Bayesian Framework
• The Dark Energy Survey: Cosmology Results With ~1500 New High-redshift Type Ia Supernovae Using The Full 5-year Dataset
• Planck 2013 results. XVI. Cosmological parameters
• Planck 2018 results. VI. Cosmological parameters
• DESI 2024: Constraints on Physics-Focused Aspects of Dark Energy using DESI DR1 BAO Data
• DESI DR2 Results II: Measurements of Baryon Acoustic Oscillations and Cosmological Constraints
• The clustering of the SDSS-IV extended Baryon Oscillation Spectroscopic Survey DR14 quasar sample: measurement of the growth rate of structure from the anisotropic correlation function between redshift 0.8 and 2.2
• The clustering of galaxies in the completed SDSS-III Baryon Oscillation Spectroscopic Survey: cosmological analysis of the DR12 galaxy sample
• Baryon acoustic oscillations from the complete SDSS-III Ly$\alpha$-quasar cross-correlation function at $z=2.4$
• DESI 2024 VI: Cosmological Constraints from the Measurements of Baryon Acoustic Oscillations
• DESI 2024 III: Baryon Acoustic Oscillations from Galaxies and Quasars
• DESI 2024 IV: Baryon Acoustic Oscillations from the Lyman Alpha Forest
• DESI 2024: Reconstructing Dark Energy using Crossing Statistics with DESI DR1 BAO data
• Cosmic Chronometers: Constraining the Equation of State of Dark Energy. I: H(z) Measurements
• Improved constraints on the expansion rate of the Universe up to z~1.1 from the spectroscopic evolution of cosmic chronometers
• Setting the Stage for Cosmic Chronometers. II. Impact of Stellar Population Synthesis Models Systematics and Full Covariance Matrix

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