4 papers
Matching conditions at null infinity in the presence of logarithms: the role of advanced and retarded radiation
MatÃas Briceño, Hernán A. González, Marc Henneaux +1
We provide a new perspective on the general matching conditions between the future of past null infinity and the past of future null infinity, emphasizing the impact of dominant lo…
Energy Detectors and Asymptotic Symmetries
Hernán A. González, Jakob Salzer
We study detector operators measuring energy to a power at null infinity in four-dimensional gauge theories and gravity. These operators transform as conformal primaries on…
Scalar subleading soft theorems from an infinite tower of charges
MatÃas Briceño, Matías Briceño, Hernán A. González +3
We investigate conservation laws in the absence of gauge invariance by analyzing interacting scalar theories with a massless scalar field. We construct an infinite tower of charges…
Asymptotic structure of scalar-Maxwell theory at the null boundary
Hernán A. González, Oriana Labrin, Olivera Miskovic
We apply the Hamiltonian formalism to investigate the massless sector of scalar field theory coupled with Maxwell electrodynamics through the Pontryagin term. Specifically, we anal…