论文标题
哈勃张力是重组周围的广告阶段的提示吗？
Is the Hubble tension a hint of AdS phase around recombination?
论文作者
论文摘要
从理论上讲，抗DE保姆（ADS）真空吸尘器可能会对可观察到的宇宙产生意想不到的影响。我们发现，在早期的暗能量（EDE）方案中，重组周围的ADS真空存在可以有效地提高CMB提交的$ H_0 $值。 As an example, we study a phenomenological EDE model with an AdS phase starting at the redshift $z\sim2000$ and ending shortly after recombination (hereafter the universe will settle down in a $Λ>0$ phase until now), and obtain a best-fit $H_0=72.74$ km/s/Mpc without degrading the CMB fit compared with the standard $Λ$CDM model.
Anti-de Sitter (AdS) vacua, being theoretically important, might have an unexpected impact on the observable universe. We find that in early dark energy (EDE) scenarios the existence of AdS vacua around recombination can effectively lift the CMB-inferred $H_0$ value. As an example, we study a phenomenological EDE model with an AdS phase starting at the redshift $z\sim2000$ and ending shortly after recombination (hereafter the universe will settle down in a $Λ>0$ phase until now), and obtain a best-fit $H_0=72.74$ km/s/Mpc without degrading the CMB fit compared with the standard $Λ$CDM model.
