Cosmic coincidence or graviton mass?
arXiv:1405.4011 · doi:10.1142/S0218271814420176
Abstract
Using the quantum corrected Friedmann equation, obtained from the quantum Raychudhuri equation, and assuming a small mass of the graviton (but consistent with observations and theory), we propose a resolution of the smallness problem(why is observed vacuum energy so small?) and the coincidence problem(why does it constitute most of the universe, about 70%, in the current epoch?).
arXiv commentThis essay received an Honorable Mention in the 2014 Gravity Research Foundation Essay Competition. 2 pages, revtex4. arXiv admin note: text overlap with arXiv:1404.3093
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