Covariant constraints for generic massive gravity and analysis of its characteristics

We perform a covariant constraint analysis of massive gravity valid for its entire parameter space, demonstrating that the model generically propagates five degrees of freedom; this is also verified by a new and streamlined Hamiltonian description. The constraint's covariant expression permits...

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Bibliographic Details
Published in:arXiv.org 2014-10
Main Authors: Deser, S, Sandora, M, Waldron, A, Zahariade, G
Format: Article
Language:English
Subjects:
Alkalies
Gravitation
Tensors
Online Access:Get full text
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Summary:We perform a covariant constraint analysis of massive gravity valid for its entire parameter space, demonstrating that the model generically propagates five degrees of freedom; this is also verified by a new and streamlined Hamiltonian description. The constraint's covariant expression permits computation of the model's caustics. Although new features such as the dynamical Riemann tensor appear in the characteristic matrix, the model still exhibits the pathologies uncovered in earlier work: superluminality and likely acausalities.
ISSN:2331-8422
DOI:10.48550/arxiv.1408.0561