Interacting Holographic Dark Energy at the Ricci scale and Dynamical system

Nairwita Mazumder; Ritabrata Biswas; Subenoy Chakraborty

Interacting Holographic Dark Energy at the Ricci scale and Dynamical system

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arxiv 1106.4627 v2 pith:2OZ6SYWH submitted 2011-06-23 gr-qc

Nairwita Mazumder , Ritabrata Biswas , Subenoy Chakraborty This is my paper · ORCID

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keywords darkenergymatterchosendensitiesevolutionformholographic

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In this work, we consider homogeneous and isotropic FRW model of the universe, filled with interacting dark matter and dark energy. The dark matter is chosen as usual in the form of dust while dark energy is holographic in nature with IR cut off at the Ricci's length and it is in the form of a perfect fluid with variable equation of state. We have chosen the interaction term of the following two types: (i) a linear combination of the matter density of the two fluids, (ii) a product of the two matter densities. For both the choices the evolution equations are transformed to an autonomous system and the corresponding critical points are analyzed. Finally, for the first choice of the interaction term the evolution of the ratio of the energy densities has been studied from the point of view of the present coincidence problem.

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Power-Law and Logarithmic Entropy-Corrected Ricci Dark Energy in a Non-Flat FRW Universe with Viscous Interaction
gr-qc 2025-08 reject novelty 4.0 of 10

Analytic expressions are derived, with algebra errors, for two entropy-corrected Ricci dark energy models and their formal correspondence to Chaplygin gas, Yang-Mills, and NLED scalar field models.

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