论文标题
广义全息宇宙学：低红移观察约束
Generalized Holographic Cosmology: low-redshift observational constraint
论文作者
论文摘要
研究了四维宇宙学模型在五维抗De保姆（ADS_5）的边界上，黑洞，带有Ads Reissner-Nordstrom和带电的Reissner-Nordstrom Black Black Hole Solutions，在那里我们称前者为“无毛”黑洞，而后者是“毛茸茸的”黑洞。为了在ADS_5黑洞的边界上获得Friedmann-Robertson-Walker（FRW）时空度量，我们将Eddington-Finkelstein（EF）坐标用于批量的几何形状。然后，我们通过ADS/CFT对应关系在ADS_5黑洞的边界上得出修改的Friedmann方程，并讨论其宇宙学的含义。在我们的模型中研究了宇宙的后期加速度。来自批量的贡献被视为暗能源，我们使用观察数据进行MCMC分析。与LCDM模型相比，我们的模型包含其他免费参数。因此，为了进行公平的比较，我们使用Akaike信息标准（AIC）和贝叶斯信息标准（BIC）来分析我们的结果。我们的数值分析表明，我们的模型可以解释与当前数据的LCDM模型一样可靠的观测数据。
Four-dimensional cosmological models are studied on a boundary of a five-dimensional Anti-de Sitter (AdS_5) black hole with AdS Reissner-Nordstrom and scalar charged Reissner- Nordstrom black hole solutions, where we call the former a "Hairless" black hole and the latter a "Hairy" black hole. To obtain the Friedmann-Robertson-Walker (FRW) spacetime metric on the boundary of the AdS_5 black hole, we employ Eddington-Finkelstein (EF) coordinates to the bulk geometry. We then derive modified Friedmann equations on a boundary of the AdS_5 black hole via AdS/CFT correspondence and discuss its cosmological implications. The late-time acceleration of the universe is investigated in our models. The contributions coming from the bulk side is treated as a dark energy source, and we perform MCMC analyses using observational data. Compared to the LCDM model, our models contain additional free parameters; therefore, to make a fair comparison, we use the Akaike information criterion (AIC) and the Bayesian information criterion (BIC) to analyze our results. Our numerical analyses show that our models can explain the observational data as reliable as the LCDM model does for the current data.
