论文标题
Chern-Simons重力中的Rényi全息暗能模型：一些宇宙学的含义
The Rényi holographic dark energy model in Chern-Simons gravity: some cosmological implications
论文作者
论文摘要
在本文中，我们在Chern Simons（CS）修改的重力理论的背景下研究Rényi全息暗能模型。使用FRW公制讨论了不同的宇宙学参数，例如能量密度，减速参数，状态方程，声速和宇宙学平面。出现了CS场方程的两个单独的解决方案。 RényiHDE模型显示了从减速到加速阶段的过渡，这与观察数据完全一致，而在第二种情况下，它仅代表了扩展的减速阶段。实际上，EOS通过某些组成部分说明了宇宙的统治时代。我们的结果预测，由于EOS显示出加速的膨胀阶段，宇宙处于黑暗能量的影响下。另一方面，第二个案例提倡$λ$ CDM的影响。在这两种情况下，$ω<0，ω^{\ prime} <0 $均表示RényiHDE模型位于冰点区域，并且在CS修饰的重力的背景下，宇宙扩展更加加速。还观察到，$ν^2_s $的值是正$ \ forall z \ in \ re $ in \ re $是系统稳定性的充分条件。因此得出的结论是，在CS修饰的重力框架中，RényiHDE模型得到了一般相对性的结果。
In this paper, we study Rényi holographic dark energy model in the context of Chern Simons (CS) modified gravity theory. Different cosmological parameters such as energy density, deceleration parameter, equation of state, square of sound speed and cosmological plane are discussed using FRW metric. Two separate solutions of CS field equations arose. The Rényi HDE model showed the transition from deceleration to acceleration phase which is fully consistent with the observational data while in the second case it represented a decelerated phase of expansion only. In fact, EoS illustrates the era of dominance of the universe by certain components. Our results predicted that the universe is under the influence of dark energy as EoS showed accelerated expansion phase. On the other hand case two advocated the influence of $Λ$ CDM. In both cases, $ω<0,ω^{\prime}<0$ indicated that the Rényi HDE model is in the freezing region and cosmic expansion is more accelerating in the context of CS modified gravity. It is also observed that the value of $ν^2_s$ is positive $ \forall z\in \Re $ a sufficient condition for the stability of the system. Hence it is concluded that the Rényi HDE model is supported by the results of general relativity in the framework of CS modified gravity.
