论文标题
$ f（q）$ gravity的$λ$ cdm宇宙的重建
Reconstruction of $Λ$CDM Universe in $f(Q)$ Gravity
论文作者
论文摘要
在此手稿中，我们从Friedmann-Laîmatre-Robertson-Walker（FLRW）进化历史上介绍了$ f（q）$重力的许多有趣的显式重建。我们发现非金属标量$ q $的更通用功能，该功能允许精确$λ$ CDM扩展历史记录。在物质领域增加额外的自由度是获得比例因素以这种方式行为的唯一方法，以获得$ Q $的更通用功能。此外，修改后的$ f（q）$重构是根据电子折叠构建的。它显示了任何FLRW宇宙学如何来自特定的$ f（q）$理论。我们还为$λ$ CDM宇宙学的特定示例重建了众所周知的宇宙学演化。
In this manuscript, we present a number of fascinating explicit reconstructions for the $f(Q)$ gravity from the background of Friedmann-Laîmatre-Robertson-Walker (FLRW) evolution history. We find the more general functions of non-metricity scalar $Q$ that admit exact $Λ$CDM expansion history. Adding extra degrees of freedom to the matter sector is the only method to get the scale factor to behave in this manner for more generic functions of $Q$. In addition, a cosmological reconstruction for modified $f(Q)$ gravity is constructed in terms of e-folding. It is shown how any FLRW cosmology can arise from a specific $f(Q)$ theory. We also reconstruct the well-known cosmological evolution for the specific examples of $Λ$CDM cosmology.
