Publications (17)
Holographic Carrollian Conformal Scalars
Xavier Bekaert, Andrea Campoleoni, Simon Pekar
We provide holographic realisations in Minkowski spacetime of a free conformal Carrollian scalar field living at null infinity. To this end, we first show that the electric and mag…
Flat from AdS: in any 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…
New higher-spin curvatures in flat space
Nicolas Boulanger, Andrea Campoleoni, Simon Pekar
It was shown that the Lie algebra underlying higher-spin holography admits a contraction including a Poincaré subalgebra in any space-time dimensions. The associated curvatures, h…
Planons and their Carroll-Galilei symmetries
José Figueroa-O'Farrill, Simon Pekar, Alfredo Pérez +1
We study the dynamics of planons, particles whose mobility is restricted to a plane, through the classification of coadjoint orbits and unitary irreducible representations of the c…
Cartan-like formulation of electric Carrollian gravity
Simon Pekar, Alfredo Pérez, Patricio Salgado-Rebolledo
We present a Cartan-like first-order action principle for electric Carrollian gravity. The action is invariant under the local homogeneous Carroll group, albeit in a different repr…
Carrollian conformal scalar as flat-space singleton
Xavier Bekaert, Andrea Campoleoni, Simon Pekar
We show that, in any space-time dimension, the on-shell (electric) conformal Carrollian scalar can be interpreted as the flat-space limit of the singleton representation of the con…