Experimental investigation of a non-Abelian gauge field in 2D perovskite photonic platform

Electromagnetism, with its scalar charges, is based on an Abelian gauge theory, whereas non-Abelian theories vector charges describe strong and weak interactions, a coupled spatial charge (color) dynamics. New fields have been synthesized artificially, allowing the study of extraordinary physical effects. The most well-known example Berry curvature, cornerstone topological physics. Synthetic implemented only recently, but their action dynamics emergent has not studied experimentally so far. Here, by exploiting optically anisotropic 2D perovskite in light–matter coupling regime, we static field, acting exciton-polariton quantum flow at room temperature. We observe corresponding curved trajectories spin precession. Our work could therefore open perspectives to physics using highly flexible photonic simulators.