5 papers
Five-dimensional Geometry from Spinning Amplitudes
Lucile Cangemi, Iustin Surubaru
Massive spinor-helicity variables in four dimensions are a useful tool for studying amplitudes between higher-spin fields and gravitons. Among them a special, simple set of amplitu…
From AdS correlators to Carrollian amplitudes with the scattering equation
Tim Adamo, Iustin Surubaru, Bin Zhu
The scattering equations relate massless scattering kinematics to marked points on a Riemann sphere, and underpin remarkable formulae for the full tree-level S-matrices of many int…
Twistorial chiral algebras in higher dimensions
Tim Adamo, Iustin Surubaru
In four spacetime dimensions, the classically integrable self-dual sectors of gauge theory and gravity have associated chiral algebras, which emerge naturally from their descriptio…
Conformal blocks from celestial graviton amplitudes
Iustin Surubaru, Bin Zhu
Four-point gluon and graviton correlators in celestial holography are famously non-analytic, having distributional support. In this work, we propose an alternative graviton correla…
Carrollian Amplitudes and Holographic Correlators in AdS3/CFT2
Iustin Surubaru, Bin Zhu
We study Carrollian amplitudes of massless scalars in (1+2) Minkowski space. Using the prescription recently shown by Alday et al. [JHEP 03 (2025) 158] originally designed for the…