Quantum signatures from Hoava-Lifshitz cosmography
Escamilla-Rivera C. Quevedo H.
June 2021IOP Publishing Ltd
Classical and Quantum Gravity
2021#38Issue 11
In this paper we propose an alternative cosmography by considering Hořava-Lifshitz gravity as a model of quantum gravity (QG) 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=-0.021-0.029+0.023 with H 0=71.90 4-1.347+1.406, without showing the standard reported 3.4-σ inconsistency. Furthermore, we obtained a specific value for the Hořava parameter ω ≈ -3.8 10-14, which can be interpreted as a measure of a quantum effect and could be used to further test this QG model. We conclude that classically, according to the ΛCDM model, our Universe seems to be spatially flat, but in fact, it is curved from a quantum point of view.
cosmography , observational tests , quantum gravity
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Instituto de Ciencias Nucleares, Universidad Nacional Autónoma de México, Circuito Exterior C.U., A.P. 70-543, Mexico D.F., 04510, Mexico
Dipartimento di Fisica and ICRA, Universita di Roma la Sapienza, Roma, I-00185, Italy
Institute for Experimental and Theoretical Physics, Al-Farabi Kazakh National University, Almaty, 050040, Kazakhstan
Instituto de Ciencias Nucleares
Dipartimento di Fisica and ICRA
Institute for Experimental and Theoretical Physics
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