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quantumdarkmatter

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**Summary::**I want to study QFT 1 in the upcoming semester, so what are the prerequisites to study it. By QFT 1 I mean Classical field theory, Canonical Quantization, Feynman Diagrams, and QED.

I am trying to self study QM from Griffiths' Introduction to Quantum Mechanics book. What are the sub topics in QM that are required to understand QFT at the level of Feynman Diagrams, QED processes etc. basically Part 1 of Peskin and Schroeder textbook.