Bouncing cosmology in the limiting curvature theory of gravity
arXiv:2108.09927 · doi:10.1103/PhysRevD.104.104060
Abstract
In this paper we discuss models satisfying the limiting curvature condition. For this purpose we modify the Einstein-Hilbert action by adding a term which restricts the growth of curvature. We analyze cosmological solutions in such models. Namely, we consider a closed contracting homogeneous isotropic universe filled with thermal radiation. We demonstrate that for properly chosen curvature constraints such a universe has a bounce. As a result its evolution is nonsingular and contains a "de Sitter-type" supercritical stage connecting contracting and expanding phases. Possible generalizations of these results are briefly discussed.
21 pages, 9 figures, 5 references added
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Cited by in corpus (5)
- Spherically symmetric black holes in the limiting curvature theory of gravity
- Two-dimensional black holes in the limiting curvature theory of gravity
- New non-singular cosmological solution of non-local gravity
- Black holes in the limiting curvature theory of gravity
- Implications of the singularity theorem for the size of a nonsingular universe