论文标题
受改性重力启发的动力黑能的线性扰动光谱
Linear perturbations spectra for dynamical dark energy inspired by modified gravity
论文作者
论文摘要
在本文中，我们研究了一种特定的状态重力方程，即所谓的Jaime-Jaber-escamilla，该等级是从第一个重力修改的动作原理中出现的，可以再现三个宇宙学可行的$ f（r）理论：starobinsky，hu-sawicki，hu-sawicki和指示模型。该EOS是一个合适的候选者，可以重现当前数据集已重建的动态暗能行为。 Based on the joint statistical analysis, we found that our results are still in good agreement (within $1σ$) with the $Λ$CDM, while at perturbative level we notice that the matter power spectrum normalisation factor $σ_8$ shows an agreement with SDSS and SNeIa+IRAS at 1-$σ$ for the Starobinsky model and with SDSS-vec for the Hu \& Sawicki and Exponential models.此外，我们发现，对于$ H_0 $值，Starobinsky和Hu \＆Sawicki与PL18 TT相比表现出最小的张力。无法从其他替代理论中观察到\ textit {直接{直接是状态方程。
In this paper, we study a particular modified gravity Equation of State, the so-called Jaime-Jaber-Escamilla, that emerges from the first gravity modified action principle and can reproduce three cosmological viable $f(R)$ theories: the Starobinsky, Hu-Sawicki, and Exponential models . This EoS is a suitable candidate to reproduce the dynamical dark energy behaviour already reconstructed by the current data sets. Based on the joint statistical analysis, we found that our results are still in good agreement (within $1σ$) with the $Λ$CDM, while at perturbative level we notice that the matter power spectrum normalisation factor $σ_8$ shows an agreement with SDSS and SNeIa+IRAS at 1-$σ$ for the Starobinsky model and with SDSS-vec for the Hu \& Sawicki and Exponential models. Furthermore, we found that for the $H_0$ values, Starobinsky and Hu \& Sawicki show the least tension in comparison with PL18 TT. All these aspects cannot be observed \textit{directly} from other alternatives theories, were a equation of state is difficult to compute analytically.
