Smooth crossing of $w_{\Lambda }=-1$ line in a single scalar field model

Abstract

Smooth double crossing of the phantom divide line $w_{\Lambda }=-1$ has been found possible with a single minimally coupled scalar field for the most simple form of generalized k-essence cosmological model, in the presence of background cold dark matter. Such crossing is a sufficiently late time transient phenomena and does not have any pathological behaviour.

9 pages, 6 figures

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• The issue of Branched Hamiltonian in F(T) Teleparallel Gravity
• The curvaton scenario in Brane cosmology: model parameters and their constraints
• Crossing the cosmological constant barrier with kinetically interacting double quintessence
• Curvaton reheating and intermediate inflation in brane cosmology
• Thermodynamics of irreversible particle creation phenomena and its cosmological consequence