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hep-th2026
Carrollian Conformal Dynamics and Flat-Space Holography
Simon Pekar
The conformal boundary of asymptotically flat spacetime is null and therefore carries a Carrollian rather than Lorentzian geometry. This changes the relation between symmetry, vari…
hep-th2026
Carroll-Cotton Tensors and Gravitational Radiation at Null Infinity
Adrien Fiorucci, Simon Pekar, P. Marios Petropoulos +1
We provide a first-principles definition of Cotton tensors on conformal Carroll geometries by gauging the conformal Carroll algebra. On the mathematical side, this analysis yields…
hep-th2026
Flat from AdS: in any even dimension and for any spin
Xavier Bekaert, Andrea Campoleoni, Simon Pekar +1
The space of solutions to the free equations of motion for massless fields of arbitrary integer spin in Minkowski spacetime is recovered as a smooth limit of the anti-de Sitter sol…