Non-minimal Quintessence: Dynamics and coincidence problem

Details Non-minimal Quintessence: Dynamics and coincidence problem Non-minimal Quintessence: Dynamics and coincidence problem

2011-09-10

arxiv.org/abs/1109.2189v1

Astronomy and Astrophysics

Astrophysics

General Relativity and Quantum Cosmology

To appear in Pramana Journal of Physics, 2011

Scientific paper

Brans--Dicke scalar--tensor theory provides a conformally coupling of the scalar field with gravity in Einstein's frame. This model is equivalent to an interacting quintessence in which dark matter is coupled to dark energy. This provides a natural mechanism to alleviate the coincidence problem. We investigate the dynamics of this model and show that it leads to comparable dark energy and dark matter densities today.

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