On the viability of bigravity cosmology
arXiv:1812.05496 · doi:10.1103/PhysRevD.99.104032
Abstract
We revisit the question of viability of bigravity cosmology as a candidate for dark energy. In the context of the low energy limit model, where matter couples to a single metric, we study linear perturbations around homogeneous and isotropic backgrounds to derive the Poisson's equation for the Newtonian potential. Extending to second order perturbations, we identify the Vainshtein radius below which non-linear scalar self interactions conspire to reproduce GR on local scales. We combine all of these results to determine the parameter space that allows a late time de-Sitter attractor compatible with observations and a successful Vainsthein mechanism. We find that the requirement on having a successful Vainsthein mechanism is not compatible with the existence of cosmological solutions at early times.
arXiv commentAccepted for publication in PRD
References in corpus (41)
- Observational Evidence from Supernovae for an Accelerating Universe and a Cosmological Constant
- Measurements of Omega and Lambda from 42 High-Redshift Supernovae
- Modified Gravity and Cosmology
- Gravitational Waves and Gamma-rays from a Binary Neutron Star Merger: GW170817 and GRB 170817A
- Resummation of Massive Gravity
- The Confrontation between General Relativity and Experiment
- Beyond the Cosmological Standard Model
- Generalization of the Fierz-Pauli Action
- Bimetric Gravity from Ghost-free Massive Gravity
- Resolving the Ghost Problem in non-Linear Massive Gravity
- Cosmological Tests of Modified Gravity
- Ghost-free Massive Gravity with a General Reference Metric
- Massive Cosmologies
- Massive gravity: nonlinear instability of the homogeneous and isotropic universe
- Perturbations in Massive Gravity Cosmology
- Bimetric gravity is cosmologically viable
- On couplings to matter in massive (bi-)gravity
- Limits of Quasi-Static Approximation in Modified-Gravity Cosmologies
- Stable and unstable cosmological models in bimetric massive gravity
- Cosmological perturbations in Massive Gravity and the Higuchi bound
- Nonlinear stability of cosmological solutions in massive gravity
- Viable cosmology in bimetric theory
- Cosmological perturbations in massive bigravity
- Laboratory Tests of the Galileon
- Gravitational waves in bigravity cosmology
- Cosmological solutions of massive gravity on de Sitter
- FRW Cosmological Perturbations in Massive Bigravity
- Restoring General Relativity in massive bi-gravity theory
- Cosmic expansion histories in massive bigravity with symmetric matter coupling
- Instability in a minimal bimetric gravity model
- Cosmology in bimetric theory with an effective composite coupling to matter
- Cosmology of bigravity with doubly coupled matter
- Possible existence of viable models of bi-gravity with detectable graviton oscillations by gravitational wave detectors
- Neutron star merger GW170817 strongly constrains doubly coupled bigravity
- Mild bounds on bigravity from primordial gravitational waves
- Stable FLRW solutions in Generalized Massive Gravity
- Stability of the Early Universe in Bigravity Theory
- Scalar instabilities in bimetric gravity: The Vainshtein mechanism and structure formation
- New massive bigravity cosmologies with double matter coupling
- Tests of Gravity Theories Using Supermassive Black Holes
- Is there vacuum when there is mass? Vacuum and non-vacuum solutions for massive gravity
Cited by in corpus (9)
- Testing modified gravity at cosmological distances with LISA standard sirens
- The Novel Probes Project -- Tests of Gravity on Astrophysical Scales
- Stable Cosmology in Generalised Massive Gravity
- Cosmic Acceleration and Growth of Structure in Massive Gravity
- Cosmology in Brans-Dicke-de Rham-Gabadadze-Tolley massive gravity
- Constraints on Quasi-dilaton Massive Gravity
- Cosmological Study in Myrzakulov Quasi-dilaton Massive Gravity
- Spinning Guest Fields during Inflation: Leftover Signatures
- Gravitational wave propagation in bigravity in the late universe