Physics 582 (QFT I) Fall 2020 Zoom lecture Wednesday November 11, 2020. Today we continued the discussion of the path integral quantization of gauge theories and finished the discussion of the Faddeev-Popov procedure. In today's lecture we derived the Faddeev-Popov determinant for the abelian gauge theory, worked out the path integral for the free Maxwell field in the 't Hooft-Feynman gauges. We also discussed the qualitative possible behaviors of the Wilson loop operator and compute its expectation value of the Maxwell theory in D dimensions.