Spontaneous symmetry breaking in cosmos: The hybrid symmetron as a dark energy switching device

Abstract

We consider symmetron model in a generalized background with a hope to make it compatible with dark energy. We observe a "no go" theorem at least in case of a conformal coupling. Being convinced of symmetron incapability to be dark energy, we try to retain its role for spontaneous symmetry breaking and assign the role of dark energy either to standard quintessence or $F(R)$ theory which are switched on by symmetron field in the symmetry broken phase. The scenario reduces to standard Einstein gravity in the high density region. After the phase transition generated by symmetron field, either the $F(R)$ gravity or the standard quintessence are induced in the low density region. we demonstrate that local gravity constraints and other requirements are satisfied although the model could generate the late-time acceleration of Universe.

LaTeX 11 pages, first sections shortened, conclusions unchanged, to appear in JCAP

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Cited by in corpus (12)

• Beyond the Cosmological Standard Model
• Late time acceleration due to generic modification of gravity and Hubble tension
• The splashback radius in symmetron gravity
• Symmetron and de Sitter attractor in a teleparallel model of cosmology
• Symmetry breaking and the onset of cosmic acceleration in scalar field models
• Parametrizations of Dark Energy Models in the Background of General Non-canonical Scalar Field in $D$-dimensional Fractal Universe
• Spontaneous symmetry breaking in the late Universe and glimpses of early Universe phase transitions à la baryogenesis
• Imprints of screened dark energy on nonlocal quantum correlations
• Obtaining a scalar fifth force via a broken-symmetry couple between the scalar field and matter
• Cosmic acceleration in screening hybrid quintessence model
• Symmetron with a non-minimal kinetic term
• Observational constraints on the massive neutrinos induced late-time cosmic acceleration