3 papers
hep-th2025
Infinite-dimensional symmetries in plane wave spacetimes
Emilie Despontin, Stéphane Detournay, Dima Fontaine
We study the asymptotic symmetries of the Nappi-Witten spacetime in four dimensions, a plane wave arising as the Penrose limit of AdS. Imposing suitable boundary cond…
hep-th2025
Electromagnetic multipole expansions and the logarithmic soft photon theorem
Geoffrey Compère, Dima Fontaine, Kevin Nguyen
We study the general structure of the electromagnetic field in the vicinity of spatial infinity. Starting from the general solution of the sourced Maxwell equations written in term…
hep-th2025
Anisotropic conformal Carroll field theories and their gravity duals
Emilie Despontin, Stephane Detournay, Sudipta Dutta +1
We investigate anisotropic conformal Carroll field theories and their holographic duals. On the field theory side, we focus on the case with scaling exponent in two and three…