Scale factor duality in quintessence models ?

Details Scale factor duality in quintessence models ? Scale factor duality in quintessence models ?

2001-05-16

arxiv.org/abs/gr-qc/0105054v1

Astronomy and Astrophysics

Astrophysics

General Relativity and Quantum Cosmology

10 pages, 3 figures, submitted to Mod.Phys.Lett.A

Scientific paper

We consider several kinds of quintessence models in the framework of scale factor duality. We show that this symmetry exists only for a very small number of quintessence potentials. We then apply the duality transformations found to several analytical solutions. It turns out that, in some cases, the presence of the potential allows a smooth connection between the pre- and the post-Big Bang phases. This may be a first step toward the resolution of the singularity problem.

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