2 citations · 2 across the 4 of their papers we have counts for
12 papers · 1 filter
Recursion Relations, Double Copy and Ward Identities
Grégoire Mathys, Guilherme L. Pimentel, Facundo Rost
We consider correlation functions of massless fields in three-dimensional Anti-de Sitter spacetime. Using embedding-space spinors akin to spinor helicity variables, we show that ma…
A New Twist on Spinning (A)dS Correlators
Daniel Baumann, Grégoire Mathys, Guilherme L. Pimentel +1
Massless spinning correlators in cosmology are extremely complicated. In contrast, the scattering amplitudes of massless particles with spin are very simple. We propose that the re…
Light-ray sum rules and the c-anomaly
Thomas Hartman, Grégoire Mathys
In a four-dimensional quantum field theory that flows between two fixed points under the renormalization group, the change in the conformal anomaly has been related to the ave…
Impossible Symmetries and Conformal Gravity
Kurt Hinterbichler, Austin Joyce, Grégoire Mathys
We explore the physics of relativistic gapless phases defined by a mixed anomaly between two generalized conserved currents. The gapless modes can be understood as Goldstone modes…
Null energy constraints on two-dimensional RG flows
Thomas Hartman, Grégoire Mathys
We study applications of spectral positivity and the averaged null energy condition (ANEC) to renormalization group (RG) flows in two-dimensional quantum field theory. We find a su…
Averaged Null Energy and the Renormalization Group
Thomas Hartman, Grégoire Mathys
We establish a connection between the averaged null energy condition (ANEC) and the monotonicity of the renormalization group, by studying the light-ray operator i…