A canonical realization of the Weyl BMS symmetry
arXiv:2008.10290 · doi:10.1016/j.physletb.2020.135920
Abstract
We construct a free field realization of an extension of the BMS algebra in dimensional space-time. Besides the supertranslations and superrotations, the extension contains an infinite set of superdilatations. We also comment the difficulties that appear when trying to extend the algebra to that of the full conformal group.
Version accepted for publication in Physics Letters B. Corrected a typo. Added a comment and updated the bibliography and research sponsors