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### Prerequisites:

- Principal of Least Action/The Calculus of Variations
- Quantum Mechanics
- Quantum Field Theory: Second Quantization*

* Although the Path Integral Formulation of QFT can be learned independently of the Second Quantization approach, a certain appreciation of the underlying concepts would be lacking.

### Reading List – Books:

- R.P. Feynman,
*QED: The Strange Theory of Light and Matter* - I.D. Lawrie, A Unified Grand Tour of Theoretical Physics, Second Edition, IOP Publishing Ltd. (2002)
- L.M. Brown,
*Feynman’s Thesis: A New Approach to Quantum Theory*. World Scientific, NJ (2008) - R.P. Feynman and A. R. Hibbs, Quantum Mechanics and Path Integrals, Emended Edition. Dover, NY (2005).
- Mattuck
*, A Guide to Feynman Diagrams in the Many-Body Problem* - R.P. Feynman and S. Weinberg,
*Elementary Particles and the Laws of Physics*

### Reading List – Articles:

- R. P. Feynman, “Relativistic Cut-Off for Quantum Electrodynamics“,
*Phys. Rev.***74:**1430 (1948). - P. Feynman, “Space-Time Approach to Non-Relativistic Quantum Mechanics“,
*Rev. of Mod. Phys.*20:367 (1948). - R.P. Feynman, “The Theory of Positrons”
*Phys. Rev.***76**, pp. 749-759 (1949) - R.P. Feynman, “Space-Time Approach to Quantum Electrodynamics”
*Phys. Rev.***76**, pp. 769-789 (1949) - R.P. Feynman, “Mathematical Formulation of the Quantum Theory of Electromagnetic Interaction”
*Phys. Rev.***80**, pp. 440-457 (1950)

### Lecture Notes, Lectures, and Presentations:

- The Feynman Lectures (1979)
- Leonard Susskind’s Lectures on the Basic Concepts of Particle Physics
- G. ‘t Hooft, “The Conceptual Basis of Quantum Field Theory”
- [hep-th/9302097] An Introduction into the Feynman Path Integral by C. Grosche
- C. Egli, “Feynman Path Integrals in Quantum Mechanics”
- Alex, Nelson, “Notes on Feynman Diagrams” (a remarkable intro to Feynman’s recipe for performing QED calculations, concentrating on procedure rather than theory)
- R. MacKenzie, “Path Integral Methods and Applications” (excellent intro)
- J. Beacham, “An Introduction to Path Integrals” (another excellent intro)
- C. Egli, “Feynman Path Integrals in Quantum Mechanics” (a very concise summary)
- L.R. Mead, “Introduction to Quantum Electrodynamics”
- R. Kass “Feynman Diagrams” (PPT)
- S. Weinberg, “What is Quantum Field Theory, and What Did We Think It is?” (a must-read on the topic of QFT)

### External References:

- Path Integral Formulation (Wikipedia)
- Quantum Electrodynamics (QED) (Wikipedia)
- Feynman diagrams (Wikipedia)
- Renormalization (Wikipedia)

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Thanks a lot for the links! I especially appreciate the links to Feynman’s old papers, it’s nice to be able to get it “straight from the horse’s mouth” 🙂