Weyl Semimetal Chiral Anomaly

A Weyl semimetal hosts pairs of band-touching points, Weyl nodes, that carry opposite "chirality" and act as momentum-space monopoles of Berry curvature. This simulator renders both nodes and their linear Weyl cones in 3D, then lets you apply electric and magnetic fields at a controllable relative angle. When E has a component along B, the lowest Landau level of each node becomes a one-way (chiral) conduction channel that pumps charge from the left-handed node to the right-handed one — the solid-state realization of the (3+1)D chiral anomaly. Live readouts track the instantaneous pumping rate, the accumulated chiral charge imbalance N₅ (which relaxes via intervalley scattering), and the resulting negative longitudinal magnetoresistance, the experimental fingerprint of this effect in real crystals such as TaAs and Na₃Bi.