Is bimetric gravity really ghost free?
|Year of publication||2013|
|Type||Article in Periodical|
|Magazine / Source||International Journal of Modern Physics A (IJMPA)|
|MU Faculty or unit|
|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.|