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Journal Article

Causality Constraints on Massive Gravity

MPS-Authors
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Camanho,  Xian O.
Quantum Gravity & Unified Theories, AEI-Golm, MPI for Gravitational Physics, Max Planck Society;

Rahman,  Rakibur
AEI-Golm, MPI for Gravitational Physics, Max Planck Society;

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1610.02033.pdf
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Citation

Camanho, X. O., Gomez, G. L., & Rahman, R. (2017). Causality Constraints on Massive Gravity. Physical Review D, 96: 084007. doi:10.1103/PhysRevD.96.084007.


Cite as: https://hdl.handle.net/11858/00-001M-0000-002C-39A3-F
Abstract
The parameter space of the de Rham-Gabadadze-Tolley massive gravity ought to be constrained essentially to a line. The theory is shown to admit pp-wave backgrounds on which linear fluctuations otherwise undergo significant time advances, potentially leading to closed time-like curves. This classical phenomenon takes place well within the theory's validity regime.