Interacting Ghost Dark Energy in Brans-Dicke Theory

Abstract

We investigate the QCD ghost model of dark energy in the framework of Brans-Dicke cosmology. First, we study the non-interacting ghost dark energy in a flat Brans-Dicke theory. In this case we obtain the EoS and the deceleration parameters and a differential equation governing the evolution of ghost energy density. Interestingly enough, we find that the EoS parameter of the non-interacting ghost dark energy can cross the phantom line ($w_D=-1$) provided the parameters of the model are chosen suitably. Then, we generalize the study to the interacting ghost dark energy in both flat and non-flat Brans-Dicke framework and find out that the transition of $w_D$ to phantom regime can be more easily achieved for than when resort to the Einstein field equations is made.

10 pages, 6 figures

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• Latest Observational Constraints to the Ghost Dark Energy Model by Using Markov Chain Monte Carlo Approach
• QCD ghost f(T)-gravity model
• Holographic, new agegraphic and ghost dark energy models in fractal cosmology
• Interacting varying Ghost Dark energy models in General Relativity
• Modified Brans-Dicke cosmology with matter-scalar field interaction
• Interacting viscous ghost tachyon, K-essence and dilaton scalar field models of dark energy
• Global behavior of cosmological dynamics with interacting Veneziano ghost
• Reconstructing QCD ghost $f(R,T)$ models
• Thermodynamical description of the ghost dark energy model
• Sounds of instability from generalized QCD ghost dark energy
• Cosmography of interacting generalized QCD ghost dark energy
• Cosmological Constraints on Ghost Dark Energy in the Brans-Dicke Theory by Using MCMC Approach
• QCD ghost dark energy cannot (even roughly) explain the main features of the accepted cosmological paradigm
• Interacting Dark Energy: Dynamical System Analysis
• Consistency of nonlinear interacting ghost dark energy with recent observations
• Interacting generalized ghost dark energy in non-flat universe
• Study of QCD generalized ghost dark energy in FRW universe
• A Universe with a generalized ghost dark energy and Van der Waals fluid interacting with a fluid
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• Effects of anisotropy on interacting ghost dark energy in Brans-Dicke theories
• Ghost Chaplygin scalar field model of dark energy
• Stability of HDE model with sign-changeable interaction in Brans-Dicke theory
• Quintessence reconstruction of interacting HDE in a non-flat universe