What are some recommended books for learning more about the science behind QED?

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Discussion Overview

The discussion centers around recommendations for books that can help individuals learn about the science behind Quantum Electrodynamics (QED) and related topics in quantum mechanics and quantum field theory. Participants share their experiences and suggest various texts suitable for different levels of understanding.

Discussion Character

  • Exploratory
  • Technical explanation
  • Conceptual clarification
  • Debate/contested
  • Homework-related

Main Points Raised

  • One participant suggests "Quantum Field Theory in a Nutshell" by A. Zee as a next step after reading QED, but expresses difficulty with its level.
  • Another participant emphasizes the importance of studying quantum mechanics before quantum field theory, recommending "Introduction to Quantum Mechanics" by David Griffiths.
  • A different participant mentions the need for advanced electromagnetism knowledge as a prerequisite for understanding quantum field theory.
  • One participant advocates for mastering non-relativistic quantum mechanics first, highlighting the challenges of rethinking concepts in quantum theory.
  • Several books are recommended for beginners, including "Modern Quantum Mechanics" by J. J. Sakurai and works by S. Weinberg, Ballentine, and A. Peres for foundational problems in quantum mechanics.
  • Some participants express skepticism about Zee's book, suggesting alternatives like Srednicky, Ryder, or Peskin & Schroeder for introductory quantum field theory.

Areas of Agreement / Disagreement

Participants generally agree on the necessity of studying quantum mechanics before quantum field theory, but there are differing opinions on specific book recommendations and the suitability of certain texts for beginners.

Contextual Notes

Some participants note that the mathematical requirements for understanding quantum mechanics and field theory are manageable, but the conceptual challenges are significant. There is also mention of varying levels of difficulty in the recommended texts, which may depend on individual backgrounds.

Who May Find This Useful

This discussion may be useful for individuals seeking guidance on learning resources for quantum mechanics and quantum field theory, particularly those who have a foundational understanding of physics and mathematics.

PeteyCoco
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I just finished reading QED and now I want to learn the science behind what Feynman talks about. In the introduction by A. Zee, he mentions his book "Quantum Field Theory in a Nutshell", saying that it is the next step for someone interested in learning more. I went to a bookstore, looked at the first chapter, and realized that it was above my level. What books would be good for me? For reference, I've taken an intro to mechanics and electromagnetism along with the entire calculus course progression, (I can deal with the math in most books, it's the science I need to learn). I hope this is the right place to be asking this!
 
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Well, you'll want to do quantum mechanics before tackling quantum field theory. I liked "Introduction to Quantum Mechanics" by David Griffiths. You can take a look at the textbook section (https://www.physicsforums.com/forumdisplay.php?f=224 ) to see some other possibilities and what PF members think of them. After QM, you will need to learn electromagnetism at a more advanced level as a classical field theory. Recommending a book for this is not so easy. Griffiths' EM book, which I also like, introduces it towards the end, which makes for a start at least.
 
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After studying QED and it's perturbative treatment I would continue with non-abelian gauge theory, especially QCD, and non-perturbative phenomena.
 
I can only agree that you first should study non-relativistic quantum mechanics, before you go over to relativistic quantum field theory. You need to learn the concepts of quantum mechanics. The math is not so difficult. If you mastered classical electromagnetism, you are well prepared for the beginning of a quantum-mechanics course, using the wave-mechanics approach, which I think still is the best way to introduce quantum mechanics.

The problem with learning (and also teaching!) quantum theory is that it requires to rethink the whole picture about nature completely. Against this the already unusual features about relativistic space-time, which is more about physics in general, including classical (i.e., non-quantum) physics, is easy.

I don't know the book by Griffiths, but what I know from his writings in Am. J. Physics (if this is the same Griffiths ;-)), I guess he must write good textbooks.

My favorite for beginners is J. J. Sakurai's Modern Quantum mechanics, followed by S. Weinberg's brand-new book. Then one should also have a look at either Ballentine's book or his Review of Modern Physics article on the Minimal Statistical Representation.

For those, interested in the foundational problems of quantum mechanics, I recommend the very "down-to-earth" and carefully written book by A. Peres, Quantum Theory: Concepts and Methods.

The latter is not necessary, however, for quantum field theory. There are many good books on the market. Zee's book for sure is not among them, I'm sorry to say. On an introductory level, I'd rather recommend Srednicky, Ryder, or Peskin&Schroeder. The best books on the subject are Weinbergs three volumes "The quantum theory of fields".
 
Great! Thanks everyone for your responses, this should be enough for me to start on.
 

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