Is Planckian discreteness observable in cosmology?

• URL: http://arxiv.org/abs/2405.12534v1
• Date: Tue, 21 May 2024 06:53:37 GMT
• Title: Is Planckian discreteness observable in cosmology?
• Authors: Gabriel R. Bengochea, Gabriel Leon, Alejandro Perez,
• Abstract summary: A Planck scale inflationary era produces the scale invariant spectrum of inhomogeneities with very small tensor-to-scalar ratio of perturbations. Here we evoke the possibility that some of the major puzzles in cosmology would have an explanation rooted in quantum gravity.
• Score: 47.03992469282679
• License: http://arxiv.org/licenses/nonexclusive-distrib/1.0/
• 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.

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