论文标题
两种流体的各向异性背景：物质和全息暗能
Anisotropic background for two fluids: matter and holographic dark energy
论文作者
论文摘要
我们讨论了一种在空间均匀的和各向异性的Bianchi型时空，其中两种流体作为宇宙的内容：物质和全息暗能在一般相对性的框架中。 To get the exact solutions of Einstein's field equations, we choose the scale factor as a hyperbolic function, specifically, $a\left( t\right) =\sinh ^{\frac{1}{n}}\left( γt\right) $, where $γ$ and $n>0$ are arbitrary constants, which gives us a time-dependent deceleration parameter.然后，我们在参数条件下研究宇宙学模型，为：$γ$固定和$ n> 1 $。我们的宇宙学解决方案导致了早期减速阶段，随后是当前观察到的加速阶段。此外，讨论了各向异性参数和其他一些物理参数。我们得出的结论是，我们的宇宙学模型与最近的天文观测结果一致。
We discuss a spatially homogeneous and anisotropic Bianchi type-I space-time with two fluids as the content of the Universe: matter and holographic dark energy in the framework of general relativity. To get the exact solutions of Einstein's field equations, we choose the scale factor as a hyperbolic function, specifically, $a\left( t\right) =\sinh ^{\frac{1}{n}}\left( γt\right) $, where $γ$ and $n>0$ are arbitrary constants, which gives us a time-dependent deceleration parameter. Then we study our cosmological model under the conditions of the parameters as: $γ$ fixed and $n>1$. Our cosmological solutions led to an early deceleration phase followed by the current observed acceleration phase. Further, the anisotropic parameter and some other physical parameters are discussed. We conclude that our cosmological model is consistent with the results of recent astronomical observations.
