The purpose of the course is to give the student the theoretical concepts, based on quantum mechanics and special relativity theory, that are needed to describe relativistic particles and their interactions. The aims of the course are that, upon completion of the course, the student should have acquired the following knowledge and skills:
Learning skills: The student understands the importance of formulating theories in a Lorentz invariant way and how this manifests itself for different kinds of fields. The student understands how scalar, Dirac and electromagnetic fields are quantized and can use these to calculate conserved quantities such as energy and momentum. The student understands what a propagator is and how its properties are related to causality. The student understands the basic notion of perturbationtheory and the meaning of asymptotic states as well as the definitions of cross section. The student masters the perturbative expansion of correlation functions and how these calculations can be simplified using Feynman diagrams. The student masters the Feynman rules for simple theories and understands how they can be derived from the Lagrange density. The student can make simple calculations of processes at tree level such as electron-positron scattering and Compton scattering as well as relating different processes using crossing relations. The student has a basic understanding of how the theory can be reformulated in a consistent way in order to include processes with higher order radiative corrections.
Making judgements: students have to demonstrate that they improved their critical abilities on the different quantization procedures fo the electromagnetic field, that they can discuss and comment critically on the possible interactions that can produce consistent quantum filed theories.
Communication skills: students have to demonstrate that they can effectively expose the topics described above. In particular, they must be able to introduce these topics in a clear and accessible way, not only for a specialist in the field, but also for a physicist with a different background.