5 papers · 1 filter
Topics in Celestial holography: A bottom-up perspective
Bin Zhu
We review some selected topics in celestial holography on the search for a celestial dual to quantum gravity in flat spacetimes. We focus on the bottom-up approach, emphasizing sym…
On Carrollian Loop Amplitudes for Gauge Theory and Gravity
Vijay Nenmeli, Bin Zhu
Carrollian amplitudes are scattering amplitudes of massless particles written in position space at null infinity. We study various aspects of Carrollian amplitudes for gauge theory…
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…
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…
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…