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arxiv: 1803.05310 · v3 · pith:NTVDO7ILnew · submitted 2018-03-12 · 🌀 gr-qc

Cosmic acceleration in screening hybrid quintessence model

classification 🌀 gr-qc
keywords couplingdarkenergyevolutionhybridmodelquintessencescalar
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A formalism for the appearance of dark energy in the matter dominated era, leading to a persistent de Sitter expansion at the late time is proposed. Our framework is a hybrid quintessence model with a non-minimal coupling to the Ricci scalar. Coupling to the curvature triggers the dark energy evolution, while the coupling of scalar fields drives this evolution to a de Sitter stable fixed point. These occur via successive $Z_2$ symmetry breakings.

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