Agegraphic dark energy with the sign-changeable interaction in non-flat universe

Abstract

In this paper, we investigate the agegraphic dark energy (ADE) model by including the sign-changeable interaction between ADE and dark matter in non-flat universe. It is shown that the interaction induces an energy flow of which the direction is first from dark matter to ADE and then from ADE to dark matter. The phase space analysis is made and the critical points are found, one of which is the accelerated scaling attractor solution. So, the coincidence problem can be alleviated. Furthermore, we show the evolution of the density parameter $\Omega$, the deceleration parameter $q$ and the equation of state (EoS) parameter $w_d$ of ADE. We also find that our model is consistent with the observational data.

7 pages, 5 figures

References in corpus (29)

• Measurements of Omega and Lambda from 42 High-Redshift Supernovae
• First Year Wilkinson Microwave Anisotropy Probe (WMAP) Observations: Preliminary Maps and Basic Results
• Cosmological parameters from SDSS and WMAP
• Coupled Quintessence
• The Hubble Space Telescope Cluster Supernova Survey: V. Improving the Dark Energy Constraints Above z>1 and Building an Early-Type-Hosted Supernova Sample
• Constraints on dark energy from Chandra observations of the largest relaxed galaxy clusters
• Scaling solutions in general non-minimal coupling theories
• Interacting Quintessence
• A Dark Energy Model Characterized by the Age of the Universe
• Interacting quintessence solution to the coincidence problem
• Probing the Coupling between Dark Components of the Universe
• Cosmology with Interaction between Phantom Dark Energy and Dark Matter and the Coincidence Problem
• Tracking and coupled dark energy as seen by WMAP
• Interacting Dark Energy and Dark Matter: observational Constraints from Cosmological Parameters
• Interacting Agegraphic Dark Energy
• Probing interaction and spatial curvature in the holographic dark energy model
• Cosmological Evolution of Interacting Phantom Energy with Dark Matter
• Interacting agegraphic dark energy models in non-flat universe
• Cosmological implications of Karolyhazy uncertainty relation
• On the Dark Sector Interactions
• Space-time in light of Karolyhazy uncertainty relation
• Cosmological Constraints on the Sign-Changeable Interactions
• Cosmological Evolution of Quintessence and Phantom with a New Type of Interaction in Dark Sector
• Running coupling: Does the coupling between dark energy and dark matter change sign during the cosmological evolution?
• Can Dark Matter Decay in Dark Energy?
• New Interaction between Dark Energy and Dark Matter Changes Sign during Cosmological Evolution
• Holographic Λ(t)CDM model in a non-flat universe
• Interacting agegraphic dark energy models in phase space
• The accelerated scaling attractor solution of the interacting agegraphic dark energy in Brans-Dicke theory

Cited by in corpus (2)

• Dynamical systems applied to cosmology: dark energy and modified gravity
• Probing the sign-changeable interaction between dark energy and dark matter with current observations