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arXiv · 2405.12534

Is Planckian discreteness observable in cosmology?

Gabriel R. Bengochea·Gabriel Leon·Alejandro Perez
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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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Gabriel R. Bengochea, Gabriel Leon, Alejandro Perez. 2024-05-21. Is Planckian discreteness observable in cosmology?. https://doi.org/10.3390/universe11050139

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