Quantum Field Theory I (2025 HS, ETH Zurich)

Abstract

The course discusses the quantisation of relativistic fields towards formulating Quantum Electrodynamics. It introduces the notion of scalar, spinor and vector fields and it describes their elementary interactions in terms of correlation functions and scattering amplitudes including radiative corrections.

Information

lecturer: Niklas Beisert (ETH Zurich); further lecture materials
location: ETH Zurich, HPV G 4
time: Thursdays 18.09–11.12.2025 09:45–11:30; Mondays 22.09.–08.12.2025 13:45–15:30

Materials

Lecture Notes [CC BY-NC-SA]
Problem Sets

Recordings [CC BY-NC-SA]

Entire Lecture Series	Slides
0. Overview	Slides	Video	Camera
1. Classical and Quantum Mechanics	Slides	Video	Camera
2. Classical Free Scalar Field	Slides	Video	Camera
3. Scalar Field Quantisation	Slides	Video	Camera
4. Symmetries	Slides	Video	Camera
5. Free Spinor Field	Slides	Video	Camera
6. Free Vector Field	Slides	Video	Camera
7. Interactions	Slides	Video	Camera
8. Correlation Functions	Slides	Video	Camera
9. Particle Scattering	Slides	Video	Camera
10. Scattering Matrix	Slides	Video	Camera
11. Loop Corrections	Slides	Video	Camera

Terms of Use

The above lecture materials are either restricted to private, scientific and non-commercial use or they are distributed (as indicated in the file) under one of the following Creative Commons licenses:

Creative Commons License “Attribution-ShareAlike 4.0 International” (CC BY-SA 4.0).

Creative Commons License “Attribution-NonCommercial-ShareAlike 4.0 International” (CC BY-NC-SA 4.0).

The materials may be adjusted and reused under the conditions of the above licenses.