Astronomy and Astrophysics – Astrophysics – General Relativity and Quantum Cosmology
Scientific paper
2001-11-12
Phys.Rev. D65 (2002) 087303
Astronomy and Astrophysics
Astrophysics
General Relativity and Quantum Cosmology
4 pages, version accepted for publication in Phys. Rev. D
Scientific paper
10.1103/PhysRevD.65.087303
Dirac's large number hypothesis is motivated by certain scaling transformations that relate the parameters of macro and microphysics. We show that these relations can actually be explained in terms of the holographic $N$ bound conjectured by Bousso and a series of purely cosmological observations, namely, that our universe is spatially homogeneous, isotropic, and flat to a high degree of approximation and that the cosmological constant dominates the energy density at present.
Carneiro Saulo
Mena Marugan Guillermo A.
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