Hamiltonian linearization of the rest-frame instant form of tetrad gravity in a completely fixed 3-orthogonal gauge: a radiation gauge for background-independent gravitational waves in a post-Minkowskian Einstein spacetime

Juri Agresti, Roberto De Pietri, Luca Lusanna +1

In the framework of the rest-frame instant form of tetrad gravity, where the Hamiltonian is the weak ADM energy ${\hat{E}}_{ADM}$, we define a special completely fixed 3-orthogonal…