Unveiling the Mass Mystery of Weyl Fermions

Weyl fermions, which are massless particles with unique properties, have been studied for their potential applications in quantum technologies. However, new research challenges the notion that Weyl fermions are truly massless. The study reveals deviations from perfect mirror symmetry in electron currents generated at the same Weyl node, suggesting that the mass of Weyl fermions may not be zero. These findings have implications for understanding the behavior of Weyl fermions and their potential applications in advanced technologies.