2 citations · 4 across the 8 of their papers we have counts for
8 papers
Dressed Fock Spaces in Gauge Theory and Gravity
Sangmin Choi, Prahar Mitra
Four-dimensional gauge and gravitational theories exhibit long-range interactions that require asymptotic particles to be dressed by clouds of soft photons and gravitons. Faddeev-K…
A Holographic Model for Soft Photons and Gravitons in Four Dimensions
Sangmin Choi, Prahar Mitra
We construct a two-dimensional action on the celestial sphere that describes the infrared sector of Abelian gauge and gravitational theories in four dimensions. In particular, we u…
Long-Range Interactions in Celestial CFT
Sangmin Choi, Ameya Kadhe, Andrea Puhm
Loop corrections in QED and gravity have recently been conjectured to give rise to an infinite tower of logarithmic soft theorems governing the universal low-energy behavior of pho…
Exact Infrared Triangle in Massless sQED with Long-range Interactions
Sangmin Choi, Ameya Kadhe, Andrea Puhm
The logarithmic soft photon theorem in four spacetime dimensions encodes an infinite-dimensional asymptotic symmetry which acts on massive matter as a divergent superphaserotation.…
Gravitational Entropy
Sangmin Choi, Malcolm J. Perry
We formulate the classical gravitational entropy of a horizon as a Noether charge that does not require the notion of a temperature, and which is applicable to horizons that are no…
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…
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…