Quantum field theory, Lecture 12

This winter semester (2016-2017) I am giving a course on quantum field theory. This course is intended for theorists with familiarity with advanced quantum mechanics and statistical physics. The main objective is introduce the building blocks of quantum electrodynamics. Here in Lecture 12 we continue the discussion of the Feynman rules for phi4 theory and discuss the Feynman diagram expansion for scattering amplitudes.