Is Planckian discreteness observable in cosmology?
arXiv:2405.12534 · doi:10.3390/universe11050139
Abstract
A Planck scale inflationary era -- in a quantum gravity theory predicting discreteness of quantum geometry at the fundamental scale -- produces the scale invariant spectrum of inhomogeneities with very small tensor-to-scalar ratio of perturbations and a hot big bang leading to a natural dark matter genesis scenario. Here we evoke the possibility that some of the major puzzles in cosmology would have an explanation rooted in quantum gravity.
8 pages. Version accepted for publication
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