Astronomy and Astrophysics – Astrophysics – General Relativity and Quantum Cosmology
Scientific paper
2009-05-19
Int.J.Mod.Phys.D18:2303-2310,2009
Astronomy and Astrophysics
Astrophysics
General Relativity and Quantum Cosmology
9 pages. Essay selected for an honorable mention by the Gravity Research Foundation, 2009
Scientific paper
10.1142/S0218271809015862
We discuss the validity of general relativity at low-energy and relate the
threshold below which the theory breaks down with the observed value of the
cosmological constant. This suggests the existence of a mass scale of ${\cal
O}(10^{-3}) eV$ and a putative violation of the equivalence principle at about
$10^{-14}$ level.
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