Unit QUANTUM FIELD THEORY

Course
Physics
Study-unit Code
GP005534
Curriculum
Fisica teorica
Teacher
Marta Orselli
Teachers
  • Marta Orselli
Hours
  • 42 ore - Marta Orselli
CFU
6
Course Regulation
Coorte 2020
Offered
2021/22
Learning activities
Affine/integrativa
Area
Attività formative affini o integrative
Academic discipline
FIS/02
Type of study-unit
Opzionale (Optional)
Type of learning activities
Attività formativa monodisciplinare
Language of instruction
English
Contents
Path integral technique. Feynman graphs 1PI. Effective action. Regularization. Renormalization. Renormalization group trajectories.
Reference texts
Peskin Schroeder, An Introduction to Quantum Field Theory.
Srednicki, Quantum Field Theory.
Educational objectives
The main aim of this course is to provide students with the bases needed to compute 1 and/or 2 loops Feynman diagrams and to know renormalisation techniques.
Main knowledge acquired will be:
Path integral technique, regularisation and renormalisation.
Prerequisites
Theoretical Physics.
Teaching methods
face to face
Other information

Learning verification modality
oral exam
Extended program
Path integral technique. Evolution kernel. Generating functionals. Effective action.
Feynman graphs 1PI.
Dimensional Regularization. Renormalization. Superficial divergence. Applicability of renormalizaion techniques. Bare action and counterterms. Renormalization group trajectories. Beta function. Callan-Symanzik equation. Ward identities for QED. Non Abelian gauge theories and Slavnov Taylor relation.
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