This lecture review the formal concepts in Quantum Field Theory useful for students mostly targeting phenomenological and experimental studies in subatomic physics. The main sections are:
Lagragian formulation of a theory
Second quantification methods
Green functions
Perturbation theory
Wick theorem
Feynman rules
Bibliographie
Y. Kosmann-Schwarzbach, Groupes et symétrie, Ecole Polytechnique (2006)
W. Greiner, Quantum mechanics : an introduction, ed. Springer (2001)