# Relativistic Quantum Field Theory I

- Institution: Massachusetts Institute of Technology
- Department: Physics
- Teacher: Prof. Hong Liu
- Term: Spring 2023
- Level: Graduate
- Language: English
- Subjects: Physics
- Source: [MIT OpenCourseWare](https://ocw.mit.edu/courses/8-323-relativistic-quantum-field-theory-i-spring-2023/)
- Licence: [CC BY-NC-SA 4.0](https://creativecommons.org/licenses/by-nc-sa/4.0/) (Non-commercial use only.)
- Syllabus: [at the source](https://ocw.mit.edu/courses/8-323-relativistic-quantum-field-theory-i-spring-2023/pages/syllabus/)
- Readings: [at the source](https://ocw.mit.edu/courses/8-323-relativistic-quantum-field-theory-i-spring-2023/pages/readings/)
- Who can watch: Tweens profiles and older (sources give no ratings; placed by Invisible Network from the source's own words)

This course is a one-term self-contained subject in quantum field theory. Concepts and basic techniques are developed through applications in elementary particle physics and condensed matter physics.

## Lectures

1. [Lecture 1: Classical Field Theories and Principle of Locality](https://invisiblenetwork.ai/learn/mit/8-323-relativistic-quantum-field-theory-i-spring-2023/05665c579fc1) (Video)
2. [Lecture 2: Symmetries and Conservation Laws](https://invisiblenetwork.ai/learn/mit/8-323-relativistic-quantum-field-theory-i-spring-2023/4426d4cf20f9) (Video)
3. [Lecture 3: Why Quantum Field Theory](https://invisiblenetwork.ai/learn/mit/8-323-relativistic-quantum-field-theory-i-spring-2023/0aa2ad52eb77) (Video)
4. [Lecture 4: Canonical Quantization of a Free Scalar Field Theory](https://invisiblenetwork.ai/learn/mit/8-323-relativistic-quantum-field-theory-i-spring-2023/5cdd21653a04) (Video)
5. [Lecture 5: Complex Scalar Field Theory and Anti-Particle](https://invisiblenetwork.ai/learn/mit/8-323-relativistic-quantum-field-theory-i-spring-2023/5f1f4c4c49ef) (Video)
6. [Lecture 6: Propagators and Green Functions](https://invisiblenetwork.ai/learn/mit/8-323-relativistic-quantum-field-theory-i-spring-2023/c896c88fada4) (Video)
7. [Lecture 7: Interacting Theories and S-Matrix](https://invisiblenetwork.ai/learn/mit/8-323-relativistic-quantum-field-theory-i-spring-2023/9209cb6d8463) (Video)
8. [Lecture 8: Path Integral Formalism for Non-Relativistic Quantum Mechanics](https://invisiblenetwork.ai/learn/mit/8-323-relativistic-quantum-field-theory-i-spring-2023/b1a432706c20) (Video)
9. [Lecture 9: Path Integral Formalism for QFT; Computation of Time-Ordered Correlation Functions](https://invisiblenetwork.ai/learn/mit/8-323-relativistic-quantum-field-theory-i-spring-2023/0b888c5c883a) (Video)
10. [Lecture 10: Time-Ordered Correlation Functions in Field Theory](https://invisiblenetwork.ai/learn/mit/8-323-relativistic-quantum-field-theory-i-spring-2023/9e220c370f5c) (Video)
11. [Lecture 11: Computation of Correlation Functions in Perturbation Theory and Feynman Diagrams](https://invisiblenetwork.ai/learn/mit/8-323-relativistic-quantum-field-theory-i-spring-2023/3d1e0bd2ab19) (Video)
12. [Lecture 12: More on Perturbation Theory and Feynman Diagrams](https://invisiblenetwork.ai/learn/mit/8-323-relativistic-quantum-field-theory-i-spring-2023/85c52f00effb) (Video)
13. [Lecture 13: Introducing the Dirac Equation](https://invisiblenetwork.ai/learn/mit/8-323-relativistic-quantum-field-theory-i-spring-2023/b5239ec0f9c2) (Video)
14. [Lecture 14: Lorentz Covariance of the Dirac Equation](https://invisiblenetwork.ai/learn/mit/8-323-relativistic-quantum-field-theory-i-spring-2023/c0a8f8a94c96) (Video)
15. [Lecture 15: Classical Solutions of Dirac Equations](https://invisiblenetwork.ai/learn/mit/8-323-relativistic-quantum-field-theory-i-spring-2023/972b81c29bbe) (Video)
16. [Lecture 16: Quantization of the Dirac Theory](https://invisiblenetwork.ai/learn/mit/8-323-relativistic-quantum-field-theory-i-spring-2023/33364698c8d3) (Video)
17. [Lecture 17: Chiral and Majorana Spinors](https://invisiblenetwork.ai/learn/mit/8-323-relativistic-quantum-field-theory-i-spring-2023/3c1f3f5943a3) (Video)
18. [Lecture 18: Discrete Symmetries](https://invisiblenetwork.ai/learn/mit/8-323-relativistic-quantum-field-theory-i-spring-2023/784b8ee37d01) (Video)
19. [Lecture 19: Path Integrals of Fermions](https://invisiblenetwork.ai/learn/mit/8-323-relativistic-quantum-field-theory-i-spring-2023/7483bb0d8d70) (Video)
20. [Lecture 20: Maxwell Theory and its Canonical Quantization](https://invisiblenetwork.ai/learn/mit/8-323-relativistic-quantum-field-theory-i-spring-2023/4f0da0b0f245) (Video)
21. [Lecture 21: Quantum Maxwell Theory (continued)](https://invisiblenetwork.ai/learn/mit/8-323-relativistic-quantum-field-theory-i-spring-2023/a1089cb8769c) (Video)
22. [Lecture 22: Quantum Electrodynamics](https://invisiblenetwork.ai/learn/mit/8-323-relativistic-quantum-field-theory-i-spring-2023/d8b3b900aad3) (Video)
23. [Lecture 23: Cross Section and Decay Rate](https://invisiblenetwork.ai/learn/mit/8-323-relativistic-quantum-field-theory-i-spring-2023/387358421ed8) (Video)
24. [Lecture 24: Elementary Processes in QED (I)](https://invisiblenetwork.ai/learn/mit/8-323-relativistic-quantum-field-theory-i-spring-2023/5f0e452c35d4) (Video)
25. [Lecture 25: Elementary Processes in QED (II)](https://invisiblenetwork.ai/learn/mit/8-323-relativistic-quantum-field-theory-i-spring-2023/4be4396d25dc) (Video)
26. [Lecture 26: Quantum Fluctuations and Renormalization](https://invisiblenetwork.ai/learn/mit/8-323-relativistic-quantum-field-theory-i-spring-2023/7d267d5a90ec) (Video)