Gauge generator for bi-gravity and multi-gravity models
arXiv:2001.10947 · doi:10.1016/j.nuclphysb.2021.115360
Abstract
Following the Hamiltonian structure of bi-gravity and multi-gravity models in the full phase space, we have constructed the generating functional of diffeomorphism gauge symmetry. As is expected, this generator is constructed from the first class constraints of the system. We show that this gauge generator works well in giving the gauge transformations of the canonical variables.
arXiv comment13 pages,published version in Nuclear Physics B
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