An interacting agegraphic dark energy model in the normal DGP braneworld is reported to have a stable dark-energy-dominated fixed point when beta < 1 - 2/(3n), and to avoid the big rip.
Stability Analysis of DGP Brane-world Model with Agegraphic Dark Energy
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abstract
The aim of this work is to apply the dynamical system approach to study the linear dynamics of the normal DGP brane-world model with agegraphic dark energy. The stability analysis of the model will be investigated and the phase plane portrait will be illustrated. The nature of critical points will be analyzed by evaluating the eigenvalues of a linearized Jacobi matrix. Also, the statefinder diagnostic procedure will be applied to show the slight deviation from the {\Lambda}CDM model. One of the most interesting results of this work is the great alleviation of the coincidence problem.
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gr-qc 1years
2019 1verdicts
REJECT 1representative citing papers
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Interacting Agegraphic Dark Energy Model in DGP Braneworld Cosmology: Dynamical System Approach
An interacting agegraphic dark energy model in the normal DGP braneworld is reported to have a stable dark-energy-dominated fixed point when beta < 1 - 2/(3n), and to avoid the big rip.