论文标题
迈向一致性电视宇宙学I：背景动态
Toward a concordance teleparallel Cosmology I: Background Dynamics
论文作者
论文摘要
假设在空间平坦的宇宙中，我们研究了红外校正的远程引力模型的宇宙学生存能力，该模型通过在宇宙学距离上以后的重力减弱来解释延迟加速。该理论不会将任何其他自由参数引入宇宙学模型中，因为基于重力的宇宙学通常是这种情况。此功能以$λ$ cdm的形式在统计上可比性地统计上可比。在这种情况下，使用最新的宇宙学观察 - 泛神经超新星IA型，hubble常数$ h_0 $，baryon声学振荡，红移空间扭曲，大爆炸核合成和宇宙微波背景的约束，虽然是脱离的，但我们显示了脱成量的nistential Inderential Inferential Inderiental usc. $ c. $ cd $ c.现象学和统计上等效。但是，前者更擅长拟合准确确定的观测约束，同时减少$ H_0 $张力而不会加剧$ S_8 $张力。这需要在线性扰动水平上进行完整检查该理论的经验可行性，这是论文II的主题。
Assuming a spatially flat universe, we study the cosmological viability of an infrared corrected teleparallel gravity model, which accounts for late acceleration by weakening gravity at later times on cosmological distances. The theory does not introduce any additional free parameters into the cosmological model, as is commonly the case with modified gravity based cosmologies. This feature renders the cosmological model statistically comparable, on equal footing, with $Λ$CDM. In this context, using recent cosmological observations -- Pantheon supernova Type Ia, Hubble constant $H_0$, Baryon acoustic oscillation, redshift space distortions, Big Bang nucleosynthesis and the cosmic microwave background constraint on the decoupling acoustic scale -- we show that, although the exponential infrared-corrected gravity and $Λ$CDM are physically different, they are phenomenologically and statistically equivalent. However, the former is more adept at fitting accurately determined observational constraints while decreasing the $H_0$ tension without worsening the $S_8$ tension. This calls for full examination of the empirical viability of the theory at the linear perturbation level, which is the subject of paper II.
