184 citations · 1.2k across the 37 of their papers we have counts for
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Field-dependent diffeomorphisms and the transformation of surface charges between gauges
Luca Ciambelli, Marc Geiller
When studying gauge theories in the presence of boundaries, local symmetry transformations are typically classified as gauge or physical depending on whether the associated charges…
Dynamical Edge Modes in Yang-Mills Theory
Adam Ball, Luca Ciambelli
We study the symplectic structure and dynamics of Yang-Mills theory in the presence of a boundary. We introduce a decomposition of the fields on a Cauchy slice such that the symple…
Quantum Null Geometry and Gravity
Luca Ciambelli, Laurent Freidel, Robert G. Leigh
In this work, we demonstrate that quantizing gravity on a null hypersurface leads to the emergence of a CFT associated with each null ray. This result stems from the ultralocal nat…
Quantum Corner Symmetry: Representations and Gluing
Luca Ciambelli, Jerzy Kowalski-Glikman, Ludovic Varrin
The corner symmetry algebra organises the physical charges induced by gravity on codimension- corners of a manifold. In this letter, we initiate a study of the quantum propertie…
Radiation in Holography
Luca Ciambelli, Sabrina Pasterski, Elisa Tabor
We show how to encode the radiative degrees of freedom in -dimensional asymptotically AdS spacetimes, using the boundary Cotton and stress tensors. Background radiation leads to…