New Astronomy ( IF 2 ) Pub Date : 2021-02-14 , DOI: 10.1016/j.newast.2021.101586 Vipin Chandra Dubey , Umesh Kumar Sharma
In this article, we have analyzed holographic principle inspired dark energy models, namely, holographic dark energy (HDE) model, Tsallis holographic dark energy (THDE) model and the Rnyi holographic dark energy (RHDE) model by using the statefinder parameter diagnostic. We have compared these dark energy models with each other, by plotting the evolutionary trajectories of the first statefinder second statefinder parameter the statefinder parameter pairs and as well as the deceleration parameter for the various parameter values of the respective dark energy models. It is observed from and plots that THDE model and RHDE model are not discriminated from the Lambda cold dark matter (CDM) model at the low redshift region, while HDE model is well-differentiated from the CDM model at the low redshift region. Clear discrimination among these three dark energy models as well as from the CDM model can be seen in the and planes. In addition, we compare the stability of the models through squared sound speed.
中文翻译:
比较全息原理启发的暗能量模型
在本文中,我们分析了全息原理启发的暗能量模型,即全息暗能量(HDE)模型,Tsallis全息暗能量(THDE)模型和R通过使用statefinder参数诊断的nyi全息暗能量(RHDE)模型。通过绘制第一个状态探测器的演化轨迹,我们将这些暗能量模型彼此进行了比较。 第二个状态查找器参数 状态查找器参数对 和 以及减速参数 用于各个暗能量模型的各种参数值。从观察到 和 图未将THDE模型和RHDE模型与Lambda冷暗物质区分开来(CDM)模型位于较低的红移区域,而HDE模型则与 低红移区域的CDM模型。在这三种暗能量模型之间以及从CDM模型可以在 和 飞机。此外,我们通过平方声速来比较模型的稳定性。