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arXiv · 2005.08784

Quantum signatures from Horava-Lifshitz cosmography

Celia Escamilla-Rivera·Hernando Quevedo
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Abstract

In this paper we propose an alternative cosmography by considering Horava-Lifshitz gravity as a model of quantum gravity to search for quantum effects at the cosmological level. For our analyses we consider current late universe surveys and a Gravitational Waves forecast from Einstein Telescope. We found naturally a non-flat scenario with $Ω_k =-0.021^{+0.023}_{-0.029}$ with $H_0 = 71.904^{+1.406}_{-1.347}$, without showing the standard reported $3.4$-$σ$ inconsistency. Furthermore, we obtained a specific value for the Ho\v rava parameter $ω\approx -3.8\times 10^{-14}$, which can be interpreted as a measure of a quantum effect and could be used to further test this quantum gravity model. We conclude that classically, according to the $Λ$CDM model, our universe seems to be spatially flat, but in fact, it is curved from a quantum point of view.

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Celia Escamilla-Rivera, Hernando Quevedo. 2021-04-07. Quantum signatures from Horava-Lifshitz cosmography. https://doi.org/10.1088/1361-6382%2Fabf66c

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