1.1k citations · 9.9k across the 76 of their papers we have counts for
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Non-compact nonlinear sigma models
Claudia de Rham, Andrew J. Tolley, Shuang-Yong Zhou
The target space of a nonlinear sigma model is usually required to be positive definite to avoid ghosts. We introduce a unique class of nonlinear sigma models where the target spac…
Vielbein to the Rescue?
Claudia de Rham, Andrew J. Tolley
Non-minimal matter couplings have recently been considered in the context of massive gravity and multi-gravity. These couplings are free of the Boulware-Deser ghost in the decoupli…
New Kinetic Terms for Massive Gravity and Multi-gravity: A No-Go in Vielbein Form
Claudia de Rham, Andrew Matas, Andrew J. Tolley
We reconsider the possibility of a class of new kinetic terms in the first order (vielbein) formulation of massive gravity and multi-gravity. We find that new degrees of freedom em…