Symmetry group at future null infinity II: Vector theory

Autor: Wen-Bin Liu, Jiang Long
Jazyk: angličtina
Rok vydání: 2023
Předmět:
Zdroj: Journal of High Energy Physics, Vol 2023, Iss 7, Pp 1-40 (2023)
Druh dokumentu: article
ISSN: 1029-8479
DOI: 10.1007/JHEP07(2023)152
Popis: Abstract In this paper, we reduce the electromagnetic theory to future null infinity and obtain a vector theory at the boundary. We compute the Poincaré flux operators which could be generalized. We quantize the vector theory, and impose normal order on the extended flux operators. It is shown that these flux operators generate the supertranslation and superrotation. When work out the commutators of these operators, we find that a generalized electromagnetic duality operator should be included as the generators to form a closed symmetry algebra.
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