用米尔恩模型解决哈勃张力
Resolving Hubble tension with the Milne model
摘要：
最近基于标准$Λ$ CDM宇宙学的哈勃常数测量揭示了早期宇宙估计和晚期测量之间的潜在分歧。此外，随着这些测量方法的改进，这种差异不仅持续存在，而且变得更加重要，更难以忽视。目前的情况将标准宇宙学置于危险之中，并提供了一个诱人的暗示，即这个问题是由$Λ$ CDM模型之外的一些新物理学造成的。它表明，一个非传统的理论-米尔恩模型-它引入了一个不同的宇宙演化动力学，显着的哈勃张力。此外，该模型还避免了标准宇宙学中一些长期存在的问题，如宇宙学常数、视界、平坦性、大爆炸奇点、宇宙年龄和能量不守恒等问题。
英文摘要：
The recent measurements of the Hubble constant based on the standard $Λ$CDM cosmology reveal an underlying disagreement between the early-Universe estimates and the late-time measurements. Moreover, as these measurements improve, the discrepancy not only persists but becomes even more significant and harder to ignore. The present situation places the standard cosmology in jeopardy and provides a tantalizing hint that the problem results from some new physics beyond the $Λ$CDM model. It is shown that a non-conventional theory - the Milne model - which introduces a different evolution dynamics for the Universe, alleviates the Hubble tension significantly. Moreover, the model also averts some long-standing problems of the standard cosmology, for instance, the problems related with the cosmological constant, the horizon, the flatness, the Big Bang singularity, the age of the Universe and the non-conservation of energy.
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