10 citations · 11 across the 4 of their papers we have counts for
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GGI lectures on boundary and asymptotic symmetries
Simone Speziale
Support material for lectures at the May '25 Galileo Galilei Institute school on asymptotic symmetries and flat holography. Contains an introduction to Noether theorem for gauge th…
Center-less BMS charge algebra
Antoine Rignon-Bret, Simone Speziale
We show that when the Wald-Zoupas prescription is implemented, the resulting charges realize the BMS symmetry algebra without any 2-cocycle nor central extension, at any cut of fut…
General covariance and boundary symmetry algebras
Antoine Rignon-Bret, Simone Speziale
In general relativity as well as gauge theories, non-trivial symmetries can appear at boundaries. In the presence of radiation some of the symmetries are not Hamiltonian vector fie…
Lessons from discrete light-cone quantization for physics at null infinity: Bosons in two dimensions
Glenn Barnich, Sucheta Majumdar, Simone Speziale +1
Motivated by issues in the context of asymptotically flat spacetimes at null infinity, we discuss in the simplest example of a massless scalar field in two dimensions several subtl…