Implicit Likelihood Inference and z-Binned Reconstruction of Dark Energy w(z)

arXiv:2608.08007 · astro-ph.CO · Submitted 2026-08-08 · Read on arXiv

Ke Wang, Jia-Yi Feng, Jianbo Lu

astro-ph.CO

Submitted: 2026-08-08

Updated: 2026-08-11

Comments: 11 pages, 6 figures

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

Terminology

• Implicit Likelihood Inference — 6× in this paper
• Baryon Acoustic Oscillation — 4× in this paper
• Amortization — 3× in this paper · explained in 1 episode
• Equation of State (EoS) — 3× in this paper · explained in 4 episodes
• Anti-correlation — 2× in this paper · explained in 3 episodes
• Core — 2× in this paper · explained in 2 episodes
• Cosmic Microwave Background — 2× in this paper
• Sequential Neural Likelihood Estimation — 2× in this paper
• Anisotropy — 1× in this paper · explained in 3 episodes
• Bayesian Inference — 1× in this paper · explained in 5 episodes
• Calibration — 1× in this paper · explained in 7 episodes
• Clustering — 1× in this paper · explained in 2 episodes
• Cosmic Linear Anisotropy Solving System — 1× in this paper
• Forward modeling — 1× in this paper · explained in 2 episodes
• Gravitational Lensing — 1× in this paper · explained in 2 episodes
• Hubble Tension — 1× in this paper · explained in 9 episodes
• Loss Function — 1× in this paper · explained in 2 episodes
• Simulation-based Inference — 1× in this paper · explained in 2 episodes

Sources

• Observational Evidence from Supernovae for an Accelerating Universe and a Cosmological Constant
• Measurements of Omega and Lambda from 42 High-Redshift Supernovae
• Accelerating Universes with Scaling Dark Matter
• Exploring the Expansion History of the Universe
• 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
• Planck 2018 results. VI. Cosmological parameters
• DESI DR2 Results II: Measurements of Baryon Acoustic Oscillations and Cosmological Constraints
• Reconstruction of dark energy and expansion dynamics using Gaussian processes
• Reconstructing equation of state of dark energy with principal component analysis
• Reconstruction of dark energy and late-time cosmic expansion using the Weighted Function Regression method
• Reconstructing dark energy with model independent methods after DESI DR2 BAO
• How the Dark Energy Can Reconcile \textit{Planck} with Local Determination of the Hubble Constant
• Distance Priors from Planck Final Release
• Dynamical dark energy in light of the latest observations
• Reconstruction of the Dark Energy equation of state from latest data: the impact of theoretical priors
• Dynamical Dark Energy in light of the DESI DR2 Baryonic Acoustic Oscillations Measurements
• The frontier of simulation-based inference
• The Cosmic Linear Anisotropy Solving System (CLASS) II: Approximation schemes
• Efficient Computation of CMB anisotropies in closed FRW models
• Fast and Credible Likelihood-Free Cosmology with Truncated Marginal Neural Ratio Estimation

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