A model of interacting holographic dark energy at the Ricci's scale
arXiv:1012.2986 · doi:10.1103/PhysRevD.83.023504
Abstract
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.
22 pages, 10 figures; key words: cosmology, dark energy, holography, observational constraints. To be published in the Physical Review D
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- Running vacuum versus Holographic dark energy: a cosmographic comparison
- Various Facets of Spacetime Foam
- Holographic dark energy described at the Hubble length
- Modified holographic Ricci dark energy coupled to interacting relativistic and non-relativistic dark matter in the nonflat universe
- A bound system in the expanding universe with modified holographic Ricci dark energy and dark matter
- Ricci-Cubic Holographic Dark Energy: Confronting Observations, Stability and the Cosmic Coincidence Problem