Theoretical analysis reveals an infinite-dimensional symmetry algebra in deformed self-dual gravity amplitudes, indicating deeper algebraic structures in celestial holography.
A bstract We consider the Moyal deformation of self-dual gravity. In the conformal primary basis, holomorphic collinear limits of the amplitudes of this theory show that it enjoys a perturbatively exact symmetry algebra LW ∧ that generalises Lw ∧ , the loop algebra of the wedge algebra of w 1+ ∞ , which appears in self-dual gravity.
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Bu et al. (2022) studied this question.
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