Coupled oscillators as models of quintom dark energy

By M. Setare, Emmanuel N. Saridakis. 2008

136 citations recorded by the source corpus.

We investigate quintom cosmology in FRW universes using isomorphic models consisting of three coupled oscillators, one of which carries negative kinetic energy. In particular, we examine the cosmological paradigms of minimally-coupled massless quintom, of two conformally-coupled massive scalars and of conformally-coupled massive quintom, and we obtain their qualitative characteristics as well as their quantitative asymptotic behavior. For open or flat geometries, we find that, independently of the specific initial conditions, the universe is always led to an eternal expansion.

Subfields: Astronomy and Astrophysics, Nuclear and High Energy Physics

View Paper: https://www.semanticscholar.org/paper/5b1b15fe00d86facad8c1632f333fa676f0a430f

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In Astronomy and Astrophysics

In Nuclear and High Energy Physics

Citations in the corpus

Hořava–Lifshitz dark energy (2009, methodology): “ this model and alternative models that allow for the realization of wDE < −1 phase, such are modiﬁed gravity [113, 114, 115, 116, 117] or models with phantom [106, 118, 119, 120] or quintom ﬁelds [121, 122, 123, 124, 125]. In ordertoprovide anexplicit but general example oftheaforementioned cros”