Noether's Currents in Dirac Theory

This lecture covers the computation of Noether's currents associated with symmetry transformations in Dirac fermions, including U(1) and U(1)A. It also explores the effects of adding a mass term and deriving the angular momentum operator. The lecture further delves into the commutator of bilinear operators and the calculation of Noether's currents for Lorentz invariance.