# Bootstrapping Large Graviton non-Gaussianities

@inproceedings{Cabass2021BootstrappingLG, title={Bootstrapping Large Graviton non-Gaussianities}, author={Giovanni Cabass and Enrico Pajer and David Stefanyszyn and Jakub Supel}, year={2021} }

Gravitational interferometers and cosmological observations of the cosmic microwave background offer us the prospect to probe the laws of gravity in the primordial universe. To study and interpret these datasets we need to know the possible graviton non-Gaussianities. To this end, we derive the most general treelevel three-point functions (bispectra) for a massless graviton to all orders in derivatives, assuming scale invariance. Instead of working with explicit Lagrangians, we take a bootstrap…

## 3 Citations

A Differential Representation of Cosmological Wavefunctions

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Our understanding of quantum field theory rests largely on explicit and controlled calculations in perturbation theory. Because of this, much recent effort has been devoted to improve our grasp of…

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We characterize graviton non-Gaussianities in models of inflation where de Sitter boosts are spontaneously broken. We discuss which of the symmetry breaking patterns studied in Nicolis et al., 2015…

Shift-symmetric 𝖲𝖮(𝖭) multi-Galileon

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A Poincarè invariant, local scalar field theory in which the Lagrangian and the equation of motion contain only up to second-order derivatives of the fields is called generalized Galileon. The…

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