Massive cosmological scalar perturbations
arXiv:1202.2767 · doi:10.1103/PhysRevD.86.043517
Abstract
We study the cosmological perturbations of the new bi-metric gravity proposed by Hassan and Rosen \cite{hasan} as a representation of massive gravity. The mass term in the model, in addition of ensuring ghost freedom for both metrics, causes the two scale factors to mix at the cosmological level and this affects the cosmological perturbation of the model. We find two combinations corresponding to the entropy and adiabatic perturbations of the theory. In this sense we show that the adiabatic perturbations could be a source for the entropy perturbations. So in addition to the adiabatic perturbations, entropy perturbations can also be present in this theory. We also show that the adiabatic perturbations are not constant at the super horizon scales, implying that the theory could not be used to describe the inflationary epoch, even if it can impose some corrections to the standard inflationary scenarios.
9 pages, no figures, super horizon solution added and discussed
References in corpus (16)
- Resummation of Massive Gravity
- Bimetric Gravity from Ghost-free Massive Gravity
- Massive Cosmologies
- Open FRW universes and self-acceleration from nonlinear massive gravity
- Cosmological Solutions in Bimetric Gravity and their Observational Tests
- Cosmological solutions with massive gravitons in the bigravity theory
- FRW Cosmology in Ghost Free Massive Gravity
- Cosmological perturbations of self-accelerating universe in nonlinear massive gravity
- On Black Holes in Massive Gravity
- Perturbations in Massive Gravity Cosmology
- Spherically Symmetric Solutions in Ghost-Free Massive Gravity
- The Self-Accelerating Universe with Vectors in Massive Gravity
- Multi-Metric Gravity via Massive Gravity
- Constraining massive gravity with recent cosmological data
- Massive Gravity on Curved Background
- Bigravitational inflation
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- Self-accelerating cosmologies and hairy black holes in ghost-free bigravity and massive gravity
- Cosmological Perturbations in Extended Massive Gravity
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- Vector instabilities and self-acceleration in the decoupling limit of massive gravity
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- Stable FLRW solutions in Generalized Massive Gravity
- Cosmology of F(R) nonlinear massive gravity
- On stars, galaxies and black holes in massive bigravity
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- Cosmology in ghost-free bigravity theory with twin matter fluids: The origin of "dark matter"
- Consistent metric combinations in cosmology of massive bigravity
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- Combining cosmological and local bounds on bimetric theory
- On nonlocally interacting metrics, and a simple proposal for cosmic acceleration
- Cosmological histories in bimetric gravity: A graphical approach
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- On Instability of Certain Bi-Metric and Massive-Gravity Theories
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- Cosmological perturbation and matter power spectrum in bimetric massive gravity
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- Perturbations of Cosmological and Black Hole Solutions in Massive gravity and Bi-gravity
- Cosmological Evolution in Bimetric Gravity: Observational Constraints and LSS Signatures
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- Gravitational wave propagation in bigravity in the late universe