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arXiv · 1503.00442

Inflationary cosmology in modified gravity theories

Kazuharu Bamba·Sergei D. Odintsov
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Abstract

We review inflationary cosmology in modified gravity such as $R^2$ gravity with its extensions in order to generalize the Starobinsky inflation model. In particular, we explore inflation realized by three kinds of effects: modification of gravity, the quantum anomaly, and the $R^2$ term in loop quantum cosmology. It is explicitly demonstrated that in these inflationary models, the spectral index of scalar modes of the density perturbations and the tensor-to-scalar ratio can be consistent with the Planck results. Bounce cosmology in $F(R)$ gravity is also explained.

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Kazuharu Bamba, Sergei D. Odintsov. 2015-03-02. Inflationary cosmology in modified gravity theories. https://doi.org/10.3390/sym7010220

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