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Quintessence and phantom cosmology with non-minimal derivative coupling
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We investigate cosmological scenarios with a non-minimal derivative coupling between the scalar field and the curvature, examining both the quintessence and the phantom cases in zero and constant potentials. In general, we find that the universe transits from one de Sitter solution to another, determined by the coupling parameter. Furthermore, according to the parameter choices and without the need for matter, we can obtain a Big Bang, an expanding universe with no beginning, a cosmological turnaround, an eternally contracting universe, a Big Crunch, a Big Rip avoidance and a cosmological bounce. This variety of behaviors reveals the capabilities of the present scenario.
Forward citations
Cited by 2 Pith papers
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In a closed universe bounce with non-minimal derivative coupling, the geometry and energy densities are regular but the scalar field's time derivative diverges, so the full dynamical system is singular.
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