论文标题
宇宙分段功能以治疗当地哈勃张力
Cosmological piecewise functions to treat the local Hubble tension
论文作者
论文摘要
当宇宙学原理在平坦的时空景观下考虑时，宇宙的当前宇宙时间演变被一般相对论理论描述。一组称为弗里德曼方程式的集合包含导致构建标准$λ$ CDM型号的原理。但是，即使是一种基本方法，有关这些方程的最新目前也基于分析差异方程式，通过考虑几种形式的物质/能量组件或在两个或多个组件以相同速率贡献的特定宇宙时间中评估它们。后者可以通过PieceWice Solutions的方法进行，该解决方案减少了数值积分。在本文中，我们通过特殊的分析功能讨论了新的解决方案，并通过对观察性哈勃观测的更新汇编来限制它们，以应对当地的$ H_0 $张力报告。
The current cosmic time evolution of the Universe is described by the General Relativity theory when a cosmological principle is considered under a flat space time landscape. The set of known as Friedmann equations, contain the principles that lead to the construction of the standard $Λ$CDM model. However, the current state-of-art regarding these equations, even if it is a fundamental method, is based in solving analytically the differential equations by considering several forms of matter/energy components or evaluating them in specific cosmic times where two or more components contribute at the same rate. This latter can be carry out through the approach of piecewice solutions, whose reduce the numerical integrals. In this paper we discuss new solutions through special analytical functions and constraint them with an updated compilation of observational Hubble observations in order to deal with the local $H_0$ tension reported.
