Mimetic $F(R)$ inflation confronted with Planck and BICEP2/Keck Array data

preprint2015arXivOpen access

In this paper we demonstrate that in the context of mimetic $F(R)$ gravity with Lagrange multiplier, it is possible to realize cosmologies which are compatible with the recent BICEP2/Keck Array data. We provide some characteristic examples for which the predicted scalar to tensor ratio can be quite smaller in comparison to the upper limit imposed by the BICEP2/Keck Array observations.

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Mimetic $F(R)$ inflation confronted with Planck and BICEP2/Keck Array data

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Mimetic F(R)F(R)F(R) inflation confronted with Planck and BICEP2/Keck Array data

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Mimetic $F(R)$ inflation confronted with Planck and BICEP2/Keck Array data