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Constraints on Regge behaviour from IR physics
Claudia de Rham, Sumer Jaitly, Andrew J. Tolley
We consider positivity constraints applicable to the Effective Field Theory (EFT) of gravity in arbitrary dimensions. By considering scattering of indefinite initial and final stat…
Subadditive Average Distances and Quantum Promptness
Federico Piazza, Andrew J. Tolley
A central property of a classical geometry is that the geodesic distance between two events is \emph{additive}. When considering quantum fluctuations in the metric or a quantum or…
Snowmass Theory Frontier: Effective Field Theory
Matthew Baumgart, Fady Bishara, Tomas Brauner +34
We summarize recent progress in the development, application, and understanding of effective field theories and highlight promising directions for future research. This Report is p…
Causal Effective Field Theories
Mariana Carrillo Gonzalez, Claudia de Rham, Victor Pozsgay +1
Physical principles such as unitarity, causality, and locality can constrain the space of consistent effective field theories (EFTs) by imposing two-sided bounds on the allowed val…
A Well-Posed UV Completion for Simulating Scalar Galileons
Mary Gerhardinger, John T. Giblin, Andrew J. Tolley +1
The Galileon scalar field theory is a prototypical example of an effective field theory that exhibits the Vainshtein screening mechanism, which is incorporated into many extensions…
New Horizons for Fundamental Physics with LISA
K. G. Arun, Enis Belgacem, Robert Benkel +138
The Laser Interferometer Space Antenna (LISA) has the potential to reveal wonders about the fundamental theory of nature at play in the extreme gravity regime, where the gravitatio…