$w_d=-1$ in interacting quintessence model

Abstract

A model consisting of quintessence scalar field interacting with cold dark matter is considered. Conditions required to reach $w_d=-1$ are discussed. It is shown that depending on the potential considered for the quintessence, reaching the phantom divide line puts some constraints on the interaction between dark energy and dark matter. This also may determine the ratio of dark matter to dark energy density at $w_d=-1$.

10 pages, references updated, some notes added, minor changes applied, accepted for publication in Eur. Phys. J. C

References in corpus (16)

• Dynamics of dark energy
• Dark Interactions and Cosmological Fine-Tuning
• Interacting Agegraphic Dark Energy
• Cosmological coincidence problem in interacting dark energy models
• Transition from quintessence to phantom phase in quintom model
• Thermodynamics second law and $\omega =-1$ crossing(s) in interacting holographic dark energy model
• Interacting Dark Energy with Inhomogeneous Equation of State
• Constraints on coupling constant between dark energy and dark matter
• Interacting Energy Components and Observational $H(z)$ Data
• Chaplygin DGP cosmologies
• Cosmic coincidence problem and variable constants of physics
• Cosmological Perturbations in Models of Coupled Dark Energy
• The w = -1 crossing of the quintom model with slowly-varying potentials
• Notes on interacting holographic dark energy model in a closed universe
• Probing the nature of cosmic acceleration
• Crossing the cosmological constant line in a dilatonic brane-world model with and without curvature corrections

Cited by in corpus (19)

• Interacting scenarios with dynamical dark energy: observational constraints and alleviation of the $H_0$ tension
• Cosmological constraints on interacting dark energy with redshift-space distortion after Planck data
• Testing coupled dark energy with large scale structure observation
• Generalized second law of thermodynamics for FRW cosmology with logarithmic correction
• Coupled dark energy with perturbed Hubble expansion rate
• Cosmological constraints on coupled dark energy
• On structure formation from a small-scales-interacting dark sector
• Super-acceleration in non-minimal derivative coupling model
• Cosmic accelerated expansion and the entropy corrected holographic dark energy
• Mass varying neutrinos, symmetry breaking, and cosmic acceleration
• Symmetry breaking and the onset of cosmic acceleration in scalar field models
• Early dark energy and the screening mechanism
• Thawing in a coupled quintessence model
• Power Law Entropy Corrected New-Agegraphic Dark Energy in Hořava-Lifshitz Cosmology
• Perturbation level interacting dark energy model and its consequence on late-time cosmological parameters
• Scalar-Gauss-Bonnet model, the coincidence problem and the gravitational wave speed
• Constant-roll, cosmic acceleration, and massive neutrinos
• A terrestrial search for dark contents of the vacuum, such as dark energy, using atom interferometry
• Early dark energy and scalarization in a scalar-tensor model