论文标题
$ f（q）$重力中时空的各向异性性质
Anisotropic nature of space-time in $f(Q)$ gravity
论文作者
论文摘要
在本文中，我们将Bianchi I型时空和完美的流体视为$ f（q）$ GRAVITY的框架（其中$％q $是非中线标量）的框架中的宇宙内容。 （Phys。V.D 98.4（2018）：044048）。我们使用时空的各向异性特性找到了体积杂交膨胀的精确解决方案。讨论并与最近的Hubble测量值进行了比较，讨论了非金属标量表的线性形式的宇宙学参数（即$ f \ left（q \ right）=αq+β$（其中$α$和$β$是免费的模型参数）。此外，我们通过使用更新的Hubble数据集约束我们的模型，包括57个数据点（$ 31 $（DA）和$ 26 $（BAO+其他），我们还获得了模型参数的最佳拟合值，并检查了模型的稳定性并通过能源测试其VETIS，并通过能源测试其VETIS。
In this paper, we consider the Bianchi type-I space-time with perfect fluid as matter content of the Universe in the framework of $f(Q)$ gravity (where $% Q$ is the non-metricity scalar) recently proposed by Jiménez et al. (Phys. Rev. D 98.4 (2018): 044048). We find exact solutions of the field equations using the anisotropic property of space-time for volumetric hybrid expansion. The cosmological parameters for the linear form of non-metricity scalar i.e. $f\left( Q\right) =αQ+β$ (where $α$ and $β$ are free model parameters) are discussed and compared with recent Hubble measurements. Also, we have obtained the best fitting values of the model parameters $k, n$ and $H_{0}$ by constraining our model with updated Hubble datasets consisting of 57 data points ($31$ (DA) and $26$ (BAO+other)) along with also examined the stability of the model and test its validity by energy conditions.
