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hep-th2026
Interacting Galilean and Finite-Energy Carroll Fermions
Pulastya Parekh, Aditya Sharma, Mauricio Valenzuela
We present a unified derivation of the Galilean and Carrollian limits of the massive Dirac action based on a similarity transformation depending on the mass and the speed of light.…
hep-th2026
Carroll fermions from null reduction: A case of good and bad fermions
Sucheta Majumdar, Aditya Sharma, Sourav Singha
We derive Carrollian fermionic actions using the null reduction method from Bargmann spacetimes. In the Lorentzian light-cone formulation, the Dirac spinor naturally decomposes int…