Smooth crossing of $w_Λ = -1$ line in a single scalar field model

Details Smooth crossing of $w_Λ = -1$ line in a single scalar field model Smooth crossing of $w_Λ = -1$ line in a single scalar field model

2007-10-18

arxiv.org/abs/0710.3486v2

Adv.High Energy Phys.2009:612063,2009

Astronomy and Astrophysics

Astrophysics

9 pages, 6 figures

Scientific paper

10.1155/2009/612063

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.

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