http://arxiv.org/abs/2005.08784
In this letter, 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 $\Omega_k =-0.021^{+0.023}{-0.029}$ with $H_0 = 71.904^{+1.406}{-1.347}$, without showing the standard reported $3.4$-$\sigma$ inconsistency. Furthermore, we obtained a specific value for the Horava parameter $\omega \approx -3.8\times 10^{-14}$, 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 $\Lambda$CDM model, our universe seems to be spatially flat, but in fact, it is curved from a quantum point of view.
C. Escamilla-Rivera and H. Quevedo
Tue, 19 May 20
34/92
Comments: 7 pages, 2 figures