BMS${}_3$ (Carrollian) field theories from a bound in the coupling of current-current deformations of CFT${}_2$

Pulastya Parekh, David Tempo, Ricardo Troncoso

Two types of Carrollian field theories are shown to emerge from finite current-current deformations of toroidal CFT${}_2$'s when the deformation coupling is precisely fixed, up to…