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arXiv · 2510.06896

Null reduction and dynamical realization of Carrollian conformal symmetries

Ashis Saha·Rabin Banerjee·Sunandan Gangopadhyay
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Abstract

We start from a Lorentzian action in a deformed light-cone background and applying the method of null reduction leads to a Carrollian action in one lower spacetime dimensions. We also identify the correct light-cone definitions of the symmetry generators and their dynamical forms in terms of the fields and take the $c\rightarrow0$ limit. It is observed that these generators produce the known kinematic Carrollian conformal algebraic commutation relations.

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Ashis Saha, Rabin Banerjee, Sunandan Gangopadhyay. 2025-10-08. Null reduction and dynamical realization of Carrollian conformal symmetries. https://doi.org/10.1140/epjc%2Fs10052-026-15304-z

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