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arXiv · 1809.04218

Cosmological constraints on $Λ(α)$CDM models with time-varying fine structure constant

Jin-Jun Zhang·Lu Yin·Chao-Qiang Geng
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Abstract

We study the $Λ(α)$CDM models with $Λ(α)$ being a function of the time-varying fine structure constant $α$. We give a close look at the constraints on two specific $Λ(α)$CDM models with one and two model parameters, respectively, based on the cosmological observational measurements along with 313 data points for the time-varying $α$. We find that the model parameters are constrained to be around $10^{-4}$, which are similar to the results discussed previously but more accurately.

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Jin-Jun Zhang, Lu Yin, Chao-Qiang Geng. 2018-09-12. Cosmological constraints on $Λ(α)$CDM models with time-varying fine structure constant. https://doi.org/10.1016/j.aop.2018.08.015

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