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On strong coupling scales in (minimal) massive gravity
James Bonifacio, Johannes Noller
Ghost-free massive gravity models generically have a strong coupling scale of . However, for one of these models - `minimal massive gravity' - it is no…
Cycles of interactions in multi-gravity theories
James H. C. Scargill, Johannes Noller, Pedro G. Ferreira
In this paper we study multi-gravity (multi-metric and multi-vielbein) theories in the presence of cycles of interactions (cycles in the so-called `theory graph'). It has been conj…
On Consistent Kinetic and Derivative Interactions for Gravitons
Johannes Noller
The only known fully ghost-free and consistent Lorentz-invariant kinetic term for a graviton (or indeed for any spin-2 field) is the Einstein-Hilbert term. Here we propose and inve…
The coupling to matter in Massive, Bi- and Multi-Gravity
Johannes Noller, Scott Melville
In this paper we construct a family of ways in which matter can couple to one or more `metrics'/spin-2 fields in the vielbein formulation. We do so subject to requiring the weak eq…