Determines the finite-energy one-loop soft-photon operator in QED, extracts a hard-hard residue in its commutator with Mellin-difference currents, and links it to a minimal filtered abelian extension and dipole-current Ward identities.
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Loop-level Carrollian amplitudes in N=4 SYM and N=8 supergravity are differential operators on tree-level versions, with logarithmic eikonal behavior and IR-safe factorization via natural splitting.
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Loop-level dipole currents and the renormalized hard celestial current algebra in QED
Determines the finite-energy one-loop soft-photon operator in QED, extracts a hard-hard residue in its commutator with Mellin-difference currents, and links it to a minimal filtered abelian extension and dipole-current Ward identities.
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On Carrollian Loop Amplitudes for Gauge Theory and Gravity
Loop-level Carrollian amplitudes in N=4 SYM and N=8 supergravity are differential operators on tree-level versions, with logarithmic eikonal behavior and IR-safe factorization via natural splitting.