Criteria for resolving the cosmological singularity in Infinite Derivative Gravity around expanding backgrounds
General Relativity and Quantum Cosmology
2018-01-03 v2
Abstract
We derive the conditions whereby null rays `defocus' within Infinite Derivative Gravity for perturbations around an (A)dS background, and show that it is therefore possible to avoid singularities within this framework. This is in contrast to Einstein's theory of General Relativity. We further extend this to an (A)dS-Bianchi I background metric, and also give an example of a specific perturbation where defocusing is possible given certain conditions.
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Cite
@article{arxiv.1710.01366,
title = {Criteria for resolving the cosmological singularity in Infinite Derivative Gravity around expanding backgrounds},
author = {James Edholm and Aindriú Conroy},
journal= {arXiv preprint arXiv:1710.01366},
year = {2018}
}
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6 pages