Is Bimetric Gravity Really Ghost Free?
classification
✦ hep-th
keywords
bimetricghostgravityadditionalanalysisanalyzearxivcarefully
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We perform the Hamiltonian analysis of the bimetric theory of gravity introduced in [arXiv:1109.3515 [hep-th]]. We carefully analyze the requirement of the preservation of all constraints and we find that there is no additional constraint that could eliminate the ghost mode.
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