General Relativity and Quantum Cosmology
[Submitted on 23 Dec 2014 (v1), last revised 9 Dec 2016 (this version, v3)]
We derive a model of dark energy which evolves with time via the scale factor. The equation of state \omega=(1-2\alpha)/(1+2\alpha) is studied as a function of a parameter \alpha introduced in this model. In addition to the recent accelerated expansion, the model predicts another decelerated phase. The age of the universe is found to be almost consistent with observation. In the limiting case, the cosmological constant model, we find that vacuum energy gravitates with a gravitational strength, different than Newton’s constant. This enables degravitation of the vacuum energy which in turn produces the tiny observed curvature, rather than a 120 orders of magnitude larger value.
Submission history
From: Hemza Azri [view email]
[v1] Tue, 23 Dec 2014 22:25:30 UTC (51 KB)
[v2] Sun, 25 Sep 2016 11:40:52 UTC (51 KB)
[v3] Fri, 9 Dec 2016 13:19:12 UTC (52 KB)
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