A free-field 2d CFT realization of the chiral bms4 algebra is constructed, with vertex operators for graviton and scalar primaries whose OPEs exactly reproduce those from conformal gravity MHV amplitudes.
Holographic symmetry alge- bras for gauge theory and gravity,
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Reformulates structures from celestial holography using non-linear Lie conformal algebras to address one-loop corrections in self-dual Yang-Mills amplitudes.
Higher spin particles generate w_∞ and S-algebra subalgebras inside the soft holographic symmetry algebra that do not commute with the graviton and gluon versions.
citing papers explorer
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Celestial dual of conformal gravity MHV amplitudes: an OPE analysis
A free-field 2d CFT realization of the chiral bms4 algebra is constructed, with vertex operators for graviton and scalar primaries whose OPEs exactly reproduce those from conformal gravity MHV amplitudes.
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Non-linear Lie Conformal Algebras and One-Loop Corrections of self-dual Yang-Mills amplitudes
Reformulates structures from celestial holography using non-linear Lie conformal algebras to address one-loop corrections in self-dual Yang-Mills amplitudes.
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Note on higher spins and holographic symmetry algebra
Higher spin particles generate w_∞ and S-algebra subalgebras inside the soft holographic symmetry algebra that do not commute with the graviton and gluon versions.