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How the Dark Energy Can Reconcile \textit{Planck} with Local Determination of the Hubble Constant
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abstract
We try to reconcile the tension between the local 2.4\% determination of Hubble constant and its global determination by $\textit{Planck}$ CMB data and BAO data through modeling the dark energy variously. We find that the chi-square is significantly reduced by $\Delta\chi^2_\text{all}=-6.76$ in the redshift-binned dark energy model where the $68\%$ limits of the equation of state of dark energy read $w(0\leq z\leq 0.1)=-1.958_{-0.508}^{+0.509}$, $w(0.1< z\leq 1.5)=-1.006_{-0.082}^{+0.092}$, and here $w(z>1.5)$ is fixed to $-1$.
Forward citations
Cited by 2 Pith papers
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Implicit Likelihood Inference and $z$-Binned Reconstruction of Dark Energy $w(z)$
Simulation-based inference with seven dark-energy bins yields w0 = -0.90 ± 0.05, a marginal ~2σ preference for w > -1 at low redshift, while all other constrained bins agree with ΛCDM.
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In the Realm of the Hubble tension $-$ a Review of Solutions
A review summarizing the Hubble constant tension and proposed solutions from new physics that restore agreement between Planck CMB data and local H0 measurements within 1-2 sigma.
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