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Symmetries of Celestial Amplitudes
Published 3 Dec 2018 in hep-th | (1812.01080v2)
Abstract: Celestial amplitudes provide holographic imprints of four-dimensional scattering processes in terms of conformal correlation functions on a two-dimensional sphere describing Minkowski space at null infinity. We construct the generators of Poincare and conformal groups in the celestial representation and discuss how these symmetries are manifest in the amplitudes.
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