An Interacting Two-Fluid Scenario for Dark Energy in FRW Universe

Abstract

We study the evolution of the dark energy parameter within the scope of a spatially flat and isotropic Friedmann-Robertson-Walker (FRW) model filled with barotropic fluid and dark energy. To obtain the deterministic solution we choose the scale factor $a(t)=\sqrt{t{e}^t}$ which yields a time dependent deceleration parameter (DP). In doing so we consider the case minimally coupled with dark energy to the perfect fluid as well as direct interaction with it.

11 pages, accepted for publication in Chinese Physics Letters. Unlike the previous version the new one contains the time depending deceleration parameter

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• Two-fluid atmosphere from decelerating to accelerating FRW dark energy models
• Accelerating Bianchi Type-V Cosmology with Perfect Fluid and Heat Flow in Saez-Ballester Theory
• Interacting Two-Fluid Viscous Dark Energy Models In Non-Flat Universe
• Bianchi type-I transit cosmological models with time dependent gravitational and cosmological constants - reexamined
• Phantom Instability of Viscous Dark Energy in Anisotropic Space-Time
• FLRW accelerating universe with interactive dark energy
• An FLRW interacting dark energy model of the Universe
• A New Class of Bianchi Type-I Cosmological Models in Scalar-Tensor Theory of Gravitation and Late Time Acceleration
• Interacting Viscous Dark Energy in Bianchi Type-I Universe
• A Dark Energy Quintessence Model of the Universe
• FRW dark energy cosmological model with hybrid expansion law
• The Bianchi type-V Dark Energy Cosmology in Self Interacting Brans Dicke Theory of Gravity
• An Interacting Scenario for Dark Energy in Bianchi Type-I Universe
• Quintessence Cosmology with an Effective $\Lambda$-Term in Lyra Manifold
• Interacting Viscous Dark Energy in Bianchi Type-III Universe
• Velocity and Heat Flow in a Composite Two Fluid System