A new quasidilaton theory of massive gravity

Abstract

We present a new quasidilaton theory of Poincare invariant massive gravity, based on the recently proposed framework of matter coupling that makes it possible for the kinetic energy of the quasidilaton scalar to couple to both physical and fiducial metrics simultaneously. We find a scaling-type exact solution that expresses a self-accelerating de Sitter universe, and then analyze linear perturbations around it. It is shown that in a range of parameters all physical degrees of freedom have non-vanishing quadratic kinetic terms and are stable in the subhorizon limit, while the effective Newton's constant for the background is kept positive.

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Cited by in corpus (33)

• Graviton Mass Bounds
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• Vielbein to the Rescue?
• Cosmological perturbations in massive gravity with doubly coupled matter
• Dipolar Dark Matter with Massive Bigravity
• On the uniqueness of the non-minimal matter coupling in massive gravity and bigravity
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• Cosmological perturbations in Gauss-Bonnet quasi-dilaton massive gravity
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• A Scale-up of Lambda_3
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• Horndeski extension of the minimal theory of quasidilaton massive gravity
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• Cosmology in massive gravity with effective composite metric
• Aether-quasi-dilaton massive gravity
• New Quasidilaton theory in Partially Constrained Vielbein Formalism
• Cosmology of Dirac-Born-Infeld dRGT massive gravity
• Derivative couplings in massive bigravity
• Phenomenology of minimal theory of quasidilaton massive gravity
• Anisotropic deformations of spatially open cosmology in massive gravity theory
• Boulware-Deser ghost in extended quasidilaton massive gravity
• Cosmological model due to dimensional reduction of higher-dimensional massive gravity theory
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• Connecting Inflation to the NANOGrav 15-year Data Set via Massive Gravity
• Emergent Lorentzian dispersion relations from a Euclidean scalar-tensor theory
• Some perspective of thermodynamical and optical properties of black holes in Maxwell-dilaton-dRGT-like massive gravity
• The Cosmological Impact of Brane-Chern-Simons Massive Gravity
• Cosmological aspects of cubic Galileon massive gravity