Holographic symmetry algebras for gauge theory and gravity
By A. Guevara, E. Himwich, M. Pate, Andrew Strominger. Journal of High Energy Physics, 2021
212 citations recorded by the source corpus.
All 4D gauge and gravitational theories in asymptotically flat spacetimes contain an infinite number of non-trivial symmetries. They can be succinctly characterized by generalized 2D currents acting on the celestial sphere. A complete classification of these symmetries and their algebras is an open problem. Here we construct two towers of such 2D currents from positive-helicity photons, gluons, or gravitons with integer conformal weights. These generate the symmetries associated to an infinite tower of conformally soft theorems. The current algebra commutators are explicitly derived from the poles in the OPE coefficients, and found to comprise a rich closed subalgebra of the complete symmetry algebra.
Subfields: Astronomy and Astrophysics, Nuclear and High Energy Physics, Statistical and Nonlinear Physics
View Paper: https://www.semanticscholar.org/paper/1ca1e30da07a703231c4850c445e85bfdc96eded
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Citations in the corpus
- Celestial Holography (2021, result): “Recent results matching celestial OPEs to worldsheet OPEs in both standard and twistor string contexts [153, 162], motivated by the discovery of symmetry algebras common to single helicity sectors of CCFT [116, 131, 148, 152, 160, 162] and stringy constructions, evoke even more anticipation!”