Symmetron and de Sitter attractor in a teleparallel model of cosmology

Abstract

In the teleparallel framework of cosmology, a quintessence with non-minimal couplings to the scalar torsion and a boundary term is considered. A conformal coupling to matter density is also taken into account. It is shown that the model can describe the onset of cosmic acceleration after an epoch of matter dominated era, where dark energy is negligible, via $Z_2$ symmetry breaking. While the conformal coupling holds the Universe in a state with zero dark energy density in the early epoch, the non-minimal couplings lead the Universe to a stable state with de Sitter expansion at the late time.

14pages, 3figures, typos fixed, accepted by JCAP

References in corpus (9)

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Cited by in corpus (19)

• Teleparallel Gravity: From Theory to Cosmology
• Higgs inflation and teleparallel gravity
• Generalised teleparallel quintom dark energy non-minimally coupled with the scalar torsion and a boundary term
• Mass varying neutrinos, symmetry breaking, and cosmic acceleration
• Scalar-Tensor Teleparallel Gravity With Boundary Term by Noether Symmetries
• Unified dark sectors in scalar-torsion theories of gravity
• Generalized Tachyonic Teleparallel cosmology
• Neutrino spin oscillations in conformally gravity coupling models and quintessence surrounding a black hole
• Reheating in a modified teleparallel model of inflation
• Damped Neutrino Oscillations in a Conformal Coupling Model
• On cosmic acceleration in four dimensional Einstein-Gauss-Bonnet gravity
• Cosmic acceleration and de Sitter expansion in hybrid mass varying neutrino model
• Early dark energy and the screening mechanism
• Symmetry breaking, and the effect of matter density on neutrino oscillation
• Dynamics of a higher-dimension Einstein-Scalar-Gauss-Bonnet cosmology
• Cosmic acceleration in screening hybrid quintessence model
• Dynamical system analysis in multiscalar-torsion cosmology
• Symmetron with a non-minimal kinetic term
• Global portraits of nonminimal teleparallel inflation