Lagrangean densities, symmetries and conservation laws.
Klein-Gordon and Dirac fields: second quantisation; commutation and anti commutation relations between creation and annihilation operators. Propagators.
Quantisation of the electromagnetic field.
Feynman diagrams and their rules in QED (Quantum Electrodynamics).
Bibliography of reference
J. D. Bjorken e S. D. Drell, Relativistic Quantum Fields, McGraw-Hill, 1965 F. Mandl e G. Shaw, Quantum Field Theory, John Wiley, 1984 C. Itzykson e J. Zuber, Quantum Field Theory, Dover, 2006 P. Ramond, Field Theory : A Modern Primer, Addison Wesley, 2001