A model of interacting holographic dark energy at the Ricci's scale

Details A model of interacting holographic dark energy at the Ricci's scale A model of interacting holographic dark energy at the Ricci's scale

2010-12-14

arxiv.org/abs/1012.2986v1

Phys.Rev.D83:023504,2011

Astronomy and Astrophysics

Astrophysics

Cosmology and Extragalactic Astrophysics

22 pages, 10 figures; key words: cosmology, dark energy, holography, observational constraints. To be published in the Physica

Scientific paper

10.1103/PhysRevD.83.023504

We study a holographic cosmological model in which the infrared cutoff is set by the Ricci's length and dark matter and dark energy do not evolve on their own but interact non-gravitationally with each other. This greatly alleviates the cosmic coincidence problem because the ratio between both components does not vanish at any time. We constrain the model with observational data from supernovae, cosmic background radiation, baryon acoustic oscillations, gas mass fraction in galaxy clusters, the history of the Hubble function, and the growth function.

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