Quintom dark energy in DGP braneworld cosmology

Abstract

In this paper we consider a $Z_2$ symmetrical 3-brane embedded in a 5-dimensional spacetime. We study the effective Einstein equation and acceleration condition in presence of the quintom dark energy fluid as the bulk matter field. It is shown that the time-dependent bulk quintom field induces a time-dependent cosmological constant on the brane. In the framework of the DGP model, the effective Einstein equation is obtained in two different cases: i) where the quintom field is considered as the bulk matter field and the brane is empty and, ii) where the quintom dark energy is confined on the brane and the bulk is empty. We show that in both cases one could obtain a self-inflationary solution at late time in positive branch $\epsilon =1$, and an asymptotically static universe in negative branch $\epsilon =-1$.

12 pages, 8 figures

References in corpus (13)

• Wilkinson Microwave Anisotropy Probe (WMAP) Three Year Results: Implications for Cosmology
• Three Year Wilkinson Microwave Anisotropy Probe (WMAP) Observations: Polarization Analysis
• Three-Year Wilkinson Microwave Anisotropy Probe (WMAP) Observations: Temperature Analysis
• Can dark energy evolve to the Phantom?
• Interacting Holographic Phantom
• Generalized Second Law of Thermodynamics in Quintom Dominated Universe
• Three-Year Wilkinson Microwave Anisotropy Probe (WMAP) Observations: Beam Profiles, Data Processing, Radiometer Characterization and Systematic Error Limits
• Constructing stabilized brane world models in five-dimensional Brans-Dicke theory
• Ghosts in the self-accelerating universe
• Coupled oscillators as models of quintom dark energy
• Shape invariance method for quintom model in the bent brane background
• Non-minimally Coupled Quintom Model Inspired by String Theory
• Mimicking Lambda with a spin-two ghost condensate

Cited by in corpus (12)

• Thermodynamics of viscous dark energy in an RSII braneworld
• A Non-minimally Coupled Quintom Dark Energy Model on the Warped DGP Brane
• Restoring New Agegraphic Dark Energy in RS II Braneworld
• Brane-Bulk energy exchange and agegraphic dark energy
• Stability analysis of the cosmological solutions with induced gravity and scalar field on the brane
• Crossing the Cosmological Constant Line on a Warped DGP Brane
• Phantom-Like Behavior of a DGP-Inspired Scalar-Gauss-Bonnet Gravity
• Quintom wormholes
• Constant-roll Inflation in Brane Induced Gravity Cosmology
• Bulk scalar field in brane-worlds with induced gravity inspired by the $\mathcal{L}(R)$ term
• Dynamics of the universe as a "test 3-brane" in a 5D bulk
• $\Lambda$CDM, $\Lambda$DGP and extended phantom-like cosmologies