JHEPGCJournal of High Energy Physics, Gravitation and Cosmology2380-4327Scientific Research Publishing10.4236/jhepgc.2019.53048JHEPGC-94065ArticlesPhysics&Mathematics The Age of the Universe Predicted by a Time-Varying <i>G</i> Model? ChristopherPilot1*Physics Department, Gonzaga University, Spokane, WA, USA08052019050392893418, June 201928, July 2019 31, July 2019© Copyright 2014 by authors and Scientific Research Publishing Inc. 2014This work is licensed under the Creative Commons Attribution International License (CC BY). http://creativecommons.org/licenses/by/4.0/

Based on previous work, it is shown how a time varying gravitational constant can account for the apparent tension between Hubble’s constant and a newly predicted age of the universe. The rate of expansion, about nine percent greater than previously estimated, can be accommodated by two specific models, treating the gravitational constant as an order parameter. The deviations from ∧CDM are slight except in the very early universe, and the two time varying parametrizations for G lead to precisely the standard cosmological model in the limit where, , as well as offering a possible explanation for the observed tension. It is estimated that in the current epoch, , where H0 is Hubble’s parameter, a value within current observational bounds.

Universe Gravitational Constant Hubble’s Constant Standard Cosmological ModelConflicts of Interest

The author declares no conflicts of interest regarding the publication of this paper.

Cite this paper

Pilot, C. (2019) The Age of the Universe Predicted by a Time-Varying G Model? Journal of High Energy Physics, Gravitation and Cosmology, 5, 928-934. https://doi.org/10.4236/jhepgc.2019.53048

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