Canonical structure of Tetrad Bimetric Gravity Auteur(s): Alexandrov S. (Article) Publié: General Relativity And Gravitation, vol. 46 p.1639 (2014) Texte intégral en Openaccess : Ref HAL: hal-00862720_v1 Ref Arxiv: 1308.6586 DOI: 10.1007/s10714-013-1639-1 WoS: 000333634900026 Ref. & Cit.: NASA ADS Exporter : BibTex | endNote 23 Citations Résumé: We perform the complete canonical analysis of the tetrad formulation of bimetric gravity and confirm that it is ghost-free describing the seven degrees of freedom of a massless and a massive gravitons. In particular, we find explicit expressions for secondary constraints, one of which is responsible for removing the ghost, whereas the other ensures the equivalence with the metric formulation. Both of them have a remarkably simple form and, being combined with conditions on Lagrange multipliers, can be written in a covariant way. |