Curvature of the universe and the dark energy potential
del Campo, Sergio
Original · EN
The flatness of an accelerating universe model (characterized by a dark energy scalar field χ) is mimicked from a curved model that is filled with, apart from the cold dark matter component, a quintessencelike scalar field Q. In this process, we characterize the original scalar potential V(Q) and the mimicked scalar potential V(χ) associated to the scalar fields Q and χ, respectively. The parameters of the original model are fixed through the mimicked quantities that we relate to the present astronomical data, such that the equation state parameter wᵪ and the dark energy density parameter Ωχ.
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