4 papers
Celestial 1-form symmetries
Laurent Freidel, Atul Sharma
The -algebra originally arose as a chiral algebra of asymptotic symmetries of Yang-Mills theory. We show that in the self-dual sector of Yang-Mills, the -algebra gets upgrade…
Asymptotic Higher Spin Symmetries IV: Einstein-Yang-Mills Theory
Nicolas Cresto, Laurent Freidel
We generalize the analysis of the asymptotic higher spin symmetries developed in the first three parts of this series by considering the minimal coupling of Einstein Gravity and Ya…
Asymptotic Higher Spin Symmetries II: Noether Realization in Gravity
Nicolas Cresto, Laurent Freidel
In this paper we construct a non-perturbative action of the higher spin symmetry algebra on the gravitational phase space. We introduce a symmetry algebroid which all…
Asymptotic Higher Spin Symmetries I: Covariant Wedge Algebra in Gravity
Nicolas Cresto, Laurent Freidel
In this paper, we study gravitational symmetry algebras that live on 2-dimensional cuts of asymptotic infinity. We define a notion of wedge algebra which depen…