Dark energy, antimatter gravity and geometry of the Universe

Details Dark energy, antimatter gravity and geometry of the Universe Dark energy, antimatter gravity and geometry of the Universe

2007-01-30

arxiv.org/abs/gr-qc/0701168v3

Astrophys. Space Sci.330:1-5,2010

Astronomy and Astrophysics

Astrophysics

General Relativity and Quantum Cosmology

Scientific paper

10.1007/s10509-010-0387-x

This article is based on two hypotheses. The first one is the existence of the gravitational repulsion between particles and antiparticles. Consequently, virtual particle-antiparticle pairs in the quantum vacuum may be considered as gravitational dipoles. The second hypothesis is that the Universe has geometry of a four-dimensional hyper-spherical shell with thickness equal to the Compton wavelength of a pion, which is a simple generalization of the usual geometry of a 3-hypersphere. It is striking that these two hypotheses lead to a simple relation for the gravitational mass density of the vacuum, which is in very good agreement with the observed dark energy density.

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