论文标题
更新对幻影交叉$ F（T）$重力的约束
Updating constraints on phantom crossing $f(T)$ gravity
论文作者
论文摘要
我们通过考虑支持状态参数方程$ω__{de} $的幻影交叉的可能性来建立对$ f（t）$重力的约束。在确定模型的可行参数空间后，在检查对背景动力学的影响时，我们执行分析以获得对宇宙参数的约束，并确定此情况的可行性。为此，我们使用了来自宇宙天货级计（CC），重型声音振荡（BAO），红移空间畸变（RSD）和IA Supernovae型（SN）测量结果的组合数据集，从最新的万神殿$+$设置中，由于对有效的Graftitational Gravitational gravitational gravitational的影响，最新的万神殿$+$设置的测量值也是如此。据发现，$ω_{de} $发生的幻影交叉的状态受到数据的青睐，并且$ f（t）$模型与按统计标准（例如AIC和BIC）竞争$λ$ CDM。此外，我们发现在$ f（t）$模型中缓解了哈勃张力的证据，同时它并没有使增长局势恶化，这表明当前情况可能是解决当前宇宙紧张局势的选择。
We establish constraints on $f(T)$ gravity by considering the possibility of a scenario that supports a phantom crossing of the equation of state parameter $ω_{DE}$. After determining the viable parameter space of the model, while checking the impact on the background dynamics, we perform an analysis to obtain constraints on cosmological parameters and determine the viability of this scenario. To this end, we use combined data sets from cosmic chronometers (CC), baryonic acoustic oscillations (BAO), redshift space distortion (RSD) and Type Ia supernovae (SN) measurements from the latest Pantheon$+$ set, in which the impact on the absolute magnitude due to the change of the effective gravitational constant is also considered. It is found that a state where a phantom crossing of $ω_{DE}$ happens is favored by data, and the $f(T)$ model is competitive with the $Λ$CDM one by statistical criteria, such as AIC and BIC. Additionally, we find evidence of the Hubble tension being alleviated within the $f(T)$ model, at the same time that it does not worsen the growth one, indicating a possibility of the present scenario as an option to address the current cosmic tensions.
