论文标题
Barrow全息暗能与Granda-Oliveros截止
Barrow holographic dark energy with Granda-Oliveros cut-off
论文作者
论文摘要
介绍了一项有关在最近引入的Barrow全息暗能模型中实施Granda-Oliveros红外临界值的效果的研究，并研究了其宇宙学的进化。我们发现变形参数（$δ$）如何影响$ h（z）$的值，并从该模型中找到可以在后期获得宇宙的加速膨胀机制。我们还获得增加$δ$的增加会导致EOS参数从典型到幻影的过渡。此外，我们表明该模型可用于描述统治时期的知识时代。最后，在研究了所提出的模型的稳定性之后，使用宇宙膨胀速率的测量值$ h（z）$，对相应参数的拟合进行了预先形成。发现参数的最佳拟合度为$（α，\，β，\，δ）=（1.00^{+0.02} _ { - 0.02}，\，\，0.69^{+0.03} _ { - 0.02} _ { - 0.02}，\，0.000 Bekenstein-Hawking关系受到青睐。
A study on the effects of implementing the Granda-Oliveros infrared cutoff in the recently introduced Barrow Holographic Dark Energy model is presented, and its cosmological evolution is investigated. We find how the deformation parameter, $Δ$, affects the values of $H(z)$, and find that from this model it is possible to obtain an accelerated expansion regime of the universe at late times. We also obtain that increasing $Δ$ causes the EoS parameter to transition from quintessence to phantom. In addition, we show that the model can be used to describe the know eras of dominance. Finally, after studying the stability of the proposed model, a fit of the corresponding parameters is preformed, utilizing the measurements of the expansion rate of the universe, $H(z)$. The best fit of the parameters is found to be $(α,\, β,\, Δ) = (1.00^{+0.02}_{-0.02},\,0.69^{+0.03}_{-0.02},\,0.000^{+0.004}_{-0.000})$ at $1σ$ C.L, for which the Bekenstein-Hawking relation is favored.
