Article révisé par les pairs
| Résumé : | An elementary introduction to Conformal Field Theory is provided. We start by reviewing symmetries in classical and quantum field theories and the associated existence of conserved currents by Noether’s theorem. Next we describe general facts on conformal invariance in d dimensions and finish with the analysis of the special case d = 2, including an introduction to the operator formalism and a discussion of the trace anomaly. |
