Quantum Field Theory: From Operators to Path Integrals

1. Introducing Quantum Fields 2. Scalar Fields 3. Relativistic Fields 4. Canonical Formalism 5. Electromagnetic Field 6. Dirac Equation 7. The Dirac Field 8. Dynamics of Interacting Fields 9. Feynman Graphs 10. Vacuum Correlation Functions 11. Quantum Electrodynamics 12. Processes in Quantum Electrodynamics 13. Perturbative Renormalization 14. Path Integrals 15. Broken Symmetry 16. Renormalization 17. The Gaussian Fixed Point 18. In Two Dimensions 19. Topological Excitations Appendix A. Background Material Appendix B. Superfluidity Appendix C. Polchinski's Renormalization Equation