用Sandage-Loeb检验探索全息暗能量模型
Exploring holographic dark energy model with Sandage-Loeb test
摘要：
考虑到Sandage-Loeb检验在覆盖红移沙漠方面的独特性以及在不久的将来就可以实现，我们探讨了全息暗能量模型这一重要竞争宇宙学模型的源红移的宇宙时间演化行为。结果表明，Sandage-Loeb检验对$Ω^0_m$的约束非常强，而对另一个无量纲参数$λ$的约束很弱.此外，本文还首次提出了通过测量红移速度峰值处的$z_{max}$值来约束各种宇宙学模型。将这种新提出的方法与传统的Sandage-Loeb检验相结合，我们应该能够对$λ$提供更好的约束，至少从理论角度来看。
英文摘要：
Taking into account that Sandage-Loeb test is unique in its coverage of the redshift desert and available in the near future, we explore the cosmic time evolution behavior of the source redshift for holographic dark energy model, an important competing cosmological model. As a result, we find that Sandage-Loeb test can provide a extremely strong bound on $Ω^0_m$, while its constraint on another dimensionless parameter $λ$ is weak. In addition, it is proposed here for the first time that we can also constrain various cosmological model by measuring the value of $z_{max}$ at which the peak of redshift velocity occurs. Combining this new proposed method with the traditional Sandage-Loeb test, we should be able to provide a better constraint on $λ$, at least from the theoretical perspective.
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