3 papers
hep-th2020
Gauge generator for bi-gravity and multi-gravity models
Ali Dokhani, Zahra Molaee, Ahmad Shirzad
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.…
hep-th2019
Hamiltonian formalism of the ghost free Tri(-Multi)gravity theory
Zahra Molaee, Ahmad Shirzad
We study the Hamiltonian structure of tri-gravity and four-gravity in the framework of ADM decomposition of the corresponding metrics. Hence we can deduce the general structure of…
hep-th2018
Hamiltonian structure of bi-gravity, problem of ghost and bifurcation
Zahra Molaee, Ahmad Shirzad
We analyze the Hamiltonian structure of a general theory of bi-gravity where the interaction term is a scalar function of the form where may…