91 citations · 254 across the 7 of their papers we have counts for
8 papers
Mixed signals in the IR: Positivity bounds with indefinite species
Claudia de Rham, Sumer Jaitly, Greg Kaplanek
In theories with multiple particle species standard fixed-t positivity bounds do not directly apply to 2-to-2 definite species scattering amplitudes when the initial and final stat…
Double Copy in AdS3 from Minitwistor Space
Cameron Beetar, Mariana Carrillo González, Sumer Jaitly +1
The double copy relates gravitational theories to the square of gauge theories. While it is well understood in flat backgrounds, its precise realisation around curved spacetimes re…
Positivity-causality competition: a road to ultimate EFT consistency constraints
Mariana Carrillo González, Claudia de Rham, Sumer Jaitly +2
Effective field theories (EFT) are strongly constrained by fundamental principles such as unitarity, locality, causality, and Lorentz invariance. In this paper, we consider the EFT…
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…
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…
QED positivity bounds
Lasma Alberte, Claudia de Rham, Sumer Jaitly +1
We apply positivity bounds directly to a gauge theory with charged scalars and charged fermions, i.e. QED, minimally coupled to gravity. Assuming that the massless -chann…
Positivity Bounds and the Massless Spin-2 Pole
Lasma Alberte, Claudia de Rham, Sumer Jaitly +1
The presence of a massless spin-2 field in an effective field theory results in a -channel pole in the scattering amplitudes that precludes the application of standard positivit…
Twistor fishnets
Tim Adamo, Sumer Jaitly
Four-dimensional conformal fishnet theory is an integrable scalar theory which arises as a double scaling limit of -deformed maximally supersymmetric Yang-Mills. We give a pertu…