Quintessence and phantom cosmology with nonminimal derivative coupling
By Emmanuel N. Saridakis, S. Sushkov. 2010
231 citations recorded by the source corpus.
We investigate cosmological scenarios with a nonminimal 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.
Subfields: Astronomy and Astrophysics, Nuclear and High Energy Physics
View Paper: https://www.semanticscholar.org/paper/ccd0af7686b211060b1308fcb986ade4a2f79142
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In Astronomy and Astrophysics
In Nuclear and High Energy Physics
Citations in the corpus
- Imperfect Dark Energy from Kinetic Gravity Braiding (2010, background): “ame logic one could also consider additional derivative couplings of the scalar eld to the Einstein tensor. In that case, equations of motion would still be of the second order, see e.g. recent works [40, 41, 42, 43, 44], contrary to [45, 46]. { 6 { where R is the Ricci tensor and E, L and Q are ”
- Nonminimal dark sector physics and cosmological tensions (2019, background): “[195] for a recent comprehensive review on interacting dark sector models, motivated by the idea of coupled quintessence [196–204].”