Local gravity test of unified models of inflation and dark energy in f(R) gravity
Abstract
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.
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