Quantum Gravity and String Theory


The Constancy of the Ratio H(z)/(1 + z) as a Sign of Low-Energy Quantum Gravity

Authors: Michael A. Ivanov

The model of low-energy quantum gravity by the author is based on the conjecture on an existence of the graviton background with the average graviton energy of the order of $10^{-3}$ eV. An interaction of photons and moving bodies with this background leads to small additional effects having essential cosmological consequences. Here, redshifts of remote objects and the additional dimming of them may be interpreted without any expansion of the Universe. The theoretical luminosity distance of the model fits the observational Hubble diagrams with high confidence levels (100\% for the SCP Union 2.1, 43\% for JLA compilations, 99.81\% for long GRBs, and 13.73\% for quasars). In the model, the ratio $H(z)/(1+z)$ should be equal to the Hubble constant. This conclusion is confirmed with 99.9999\% C.L. by fitting the compilation of 40 $H(z)$ observations from the paper by Zhang and Xia [arXiv:1606.04398].

Comments: 5 pages; poster contribution to the Xth International Conference on the Interconnection between Particle Physics and Cosmology (PPC 2016), 11-15 July 2016, São Paulo, Brazil

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[v1] 2016-10-01 09:27:55

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