On the Carrollian Nature of the Light Front

Sucheta Majumdar

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arXiv · 2406.10353

On the Carrollian Nature of the Light Front

Sucheta Majumdar

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Abstract

Motivated by recent advances in non-Lorentzian physics, we revisit the light-cone formulation of quantum field theories. We discuss some interesting subalgebras within the light-cone Poincar\'e algebra, with a key emphasis on the Carroll, Bargmann, and Galilean kinds. We show that theories on the light front possess a Hamiltonian of the magnetic Carroll type, thereby proposing a straightforward method for deriving magnetic Carroll Hamiltonian actions from Lorentzian field theories.

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Sucheta Majumdar. 2024-06-14. On the Carrollian Nature of the Light Front. https://arxiv.org/abs/2406.10353

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