Is bimetric gravity really ghost free?

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Authors

KLUSOŇ Josef

Year of publication 2013
Type Article in Periodical
Magazine / Source International Journal of Modern Physics A (IJMPA)
MU Faculty or unit

Faculty of Science

Citation
Doi http://dx.doi.org/10.1142/S0217751X13501431
Field Theoretical physics
Keywords Bimetric gravity; Hamiltonian formalism
Description We perform the Hamiltonian analysis of the bimetric theory of gravity introduced in S. F. Hassan and R. A. Rosen, J. High Energy Phys.1202, 126 (2012), 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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