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Causality Constraints on Gravitational Effective Field Theories
Claudia de Rham, Andrew J. Tolley, Jun Zhang
We consider the effective field theory of gravity around black holes, and show that the coefficients of the dimension-8 operators are tightly constrained by causality consideration…
Reverse Bootstrapping: IR lessons for UV physics
Lasma Alberte, Claudia de Rham, Sumer Jaitly +1
S-matrix bootstrap and positivity bounds are usually viewed as constraints on low-energy theories imposed by the requirement of a standard UV completion. By considering graviton--p…
Cosmology of Extended Proca-Nuevo
Claudia de Rham, Sebastian Garcia-Saenz, Lavinia Heisenberg +1
Proca-Nuevo is a non-linear theory of a massive spin-1 field which enjoys a non-linearly realized constraint that distinguishes it among other generalized vector models. We show th…
Quantum stability of Proca-Nuevo
Claudia de Rham, Lavinia Heisenberg, Ankip Kumar +1
The construction of general derivative self-interactions for a massive Proca field relies on the well-known condition for constrained systems of having a degenerate Hessian. The na…
Scattering Amplitudes for Binary Systems beyond GR
Mariana Carrillo-González, Claudia de Rham, Andrew J. Tolley
Amplitude methods have proven to be a promising technique to perform Post-Minkowskian calculations used as inputs to construct gravitational waveforms. In this paper, we show how t…
Positivity Bounds on Dark Energy: When Matter Matters
Claudia de Rham, Scott Melville, Johannes Noller
Positivity bounds - constraints on any low-energy effective field theory imposed by the fundamental axioms of unitarity, causality and locality in the UV - have recently been used…