Statefinder diagnostic for cosmology with the abnormally weighting energy hypothesis

Details Statefinder diagnostic for cosmology with the abnormally weighting energy hypothesis Statefinder diagnostic for cosmology with the abnormally weighting energy hypothesis

2007-11-30

arxiv.org/abs/0711.4854v1

Phys.Rev.D77:027301,2008

Astronomy and Astrophysics

Astrophysics

5 pages, 4 figures, accepted by PRD

Scientific paper

10.1103/PhysRevD.77.027301

In this paper, we apply the statefinder diagnostic to the cosmology with the Abnormally Weighting Energy hypothesis (AWE cosmology), in which dark energy in the observational (ordinary matter) frame results from the violation of weak equivalence principle (WEP) by pressureless matter. It is found that there exist closed loops in the statefinder plane, which is an interesting characteristic of the evolution trajectories of statefinder parameters and can be used to distinguish AWE cosmology from the other cosmological models.

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