362 citations · 2.1k across the 46 of their papers we have counts for
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The Classical Super-Phaserotation Infrared Triangle
Sangmin Choi, Alok Laddha, Andrea Puhm
The universality of the logarithmic soft photon theorem in four dimensions can be traced to an infinite-dimensional asymptotic symmetry which acts as a local phase rotation on matt…
The Classical Super-Rotation Infrared Triangle
Sangmin Choi, Alok Laddha, Andrea Puhm
The universality of gravitational scattering at low energies and large distances encoded in soft theorems and memory effects can be understood from symmetries. In four-dimensional…
Restoring Causality in Higher Curvature Gravity
Jose D. Edelstein, Rajes Ghosh, Alok Laddha +1
Incorporating higher curvature terms into gravity theories modifies the classical field equations, potentially leading to theoretical issues like Shapiro time advancements that vio…
Symmetries of the gravitational scattering in the absence of peeling
Marc Geiller, Alok Laddha, Céline Zwikel
The symmetries of the gravitational scattering are intimately tied to the symmetries which preserve asymptotic flatness at null infinity. In Penrose's definition of asymptotic flat…
Positive Geometries, Corolla Polynomial and Gauge Theory Amplitudes
Alok Laddha, Amit Suthar
Arkani-Hamed, Bai, He, and Yan (ABHY) discovered a convex realisation of the associahedron whose combinatorial and geometric structure generates tree-level amplitudes in bi-adjoint…
Asymptotic Symmetries for Logarithmic Soft Theorems in Gauge Theory and Gravity
Sangmin Choi, Alok Laddha, Andrea Puhm
Gauge theories and perturbative gravity in four dimensions are governed by a tower of infinite-dimensional symmetries which arise from tree-level soft theorems. However, aside from…