Scalar Perturbation and Stability of Ricci Dark Energy

Abstract

The Ricci dark energy (RDE) proposed to explain the accelerating expansion of the universe requires its parameter $\alpha <1$, whose value will determine the behavior of RDE. In this Letter, we study the scalar perturbation of RDE with and without matter in the universe, and we find that in both cases, the perturbation is stable if $\alpha >1/3$, which gives a lower bound for $\alpha$ theoretically.

arXiv comment6 pages, 10 figures

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Cited by in corpus (12)

• Testing the dark energy with gravitational lensing statistics
• Observational constraints on the interacting Ricci dark energy model
• A New Class of Parametrization for Dark Energy without Divergence
• Analytical approach of late-time evolution in a torsion cosmology
• Modified holographic dark energy in DGP brane world
• Cosmology with Ricci dark energy
• Global behavior of cosmological dynamics with interacting Veneziano ghost
• Correspondence between Ricci and other dark energies
• Thermodynamic Origin of the Cardassian Universe
• Non-adiabatic perturbations in Ricci dark energy model
• Thawing k-essence dark energy in the PAge space
• "Microscopic" approach to the Ricci dark energy