Local-gravity test of unified models of inflation and dark energy in f(R) gravity
Local-gravity test of unified models of inflation and dark energy in f(R) gravity
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DOI：
10.1103/physrevd.102.043504
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发表时间：
2020-04
影响因子：
5
通讯作者：
Mai Yashiki;N. Sakai;R. Saito
中科院分区：
文献类型：
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作者：
Mai Yashiki;N. Sakai;R. Saito
我们考虑统一了Rn暴胀和暗能量模型的f(R)引力理论。首先，从宇宙微波背景的最终普朗克数据中，我们得到了1.977<n<2.003的条件。接下来，在此约束下，我们研究了三个模型的局部重力测试。我们发现，即使在地球曲率尺度上，Rn项也可以支配暗能量项，这与直觉相反；然而，Rn项并没有放松或收紧对三种模型的约束。
We consider f(R) gravity theories which unify Rn inflation and dark energy models. First, from the final Planck data of the cosmic microwave background, we obtain a condition, 1.977<n<2.003. Next, under this constraint, we investigate local-gravity tests for three models. We find that the Rn term can dominate over the dark energy term even at the Earth’s curvature scale, contrary to intuition; however, the Rn term does not relax or tighten the constraints on the three models.