Non-local gravity in bouncing cosmology scenarios
arXiv:2110.10008 · doi:10.1088/1475-7516/2022/05/043
Abstract
In this work, we analyzed the improved Deser-Woodard non-local gravity over the background of five different bouncing cosmologies, whose premise is avoid the initial singular state of the universe. We developed the numerical solution for the non-local distortion function, which encompass the modifications to the Einstein-Hilbert action, using the reconstruction procedure and we have found that they have a viable cosmological solution. Afterwards, we discussed the physical aspects and outcomes of the evolution of the distortion function throughout the bouncing point for these models, specifically: the symmetric bounce, oscillatory bounce, the matter bounce, finite time singularity model, and the pre-inflationary asymmetrical bounce.
arXiv commentv1: 14 pages, 5 figures; v2: 15 pages, 6 figures, matches JCAP published version
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