303 citations · 1.4k across the 24 of their papers we have counts for
25 papers
New Factorizations of Yang-Mills Amplitudes
Alfredo Guevara, Yong Zhang
We propose a new factorization pattern for tree-level Yang-Mills (YM) amplitudes, where they decompose into a sum of gluings of two lower-point amplitudes by setting specific two-p…
Self-Dual Black Holes in Celestial Holography
Erin Crawley, Alfredo Guevara, Elizabeth Himwich +1
We construct two-dimensional quantum states associated to four-dimensional linearized rotating self-dual black holes in signature Klein space. The states are comprised of g…
Scattering in Black Hole Backgrounds and Higher-Spin Amplitudes: Part II
Yilber Fabian Bautista, Alfredo Guevara, Chris Kavanagh +1
We continue to investigate correspondences between, on the one hand, scattering amplitudes for massive higher-spin particles and gravitons in appropriate quantum-to-classical limit…
Towards Gravity From a Color Symmetry
Alfredo Guevara
Using tools from color-kinematics duality we propose a holographic construction of gravitational amplitudes, based on a 2d Kac-Moody theory on the celestial sphere. In the $N\to \i…
Notes on Resonances and Unitarity from Celestial Amplitudes
Diego García-Sepúlveda, Alfredo Guevara, Justin Kulp +1
We study the celestial description of the sigma model in the large limit as introduced by Coleman, Jackiw and Politzer. Focusing on three dimensions, we analyze the impl…
Reconstructing Classical Spacetimes from the S-Matrix in Twistor Space
Alfredo Guevara
We present a holographic construction of solutions to the gravitational wave equation starting from QFT scattering amplitudes. The construction amounts to a change of basis from mo…