Best Intro to Quantum Mechanics: Griffiths vs Dirac

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SUMMARY

The forum discussion centers on the best introductory textbooks for Quantum Mechanics (QM), comparing Griffiths' "Introduction to Quantum Mechanics" and Dirac's classic text. While Griffiths is widely recommended for its clarity and self-study suitability, it faces criticism for its casual approach and mathematical inaccuracies. Dirac, although historically significant, is not recommended for beginners. Other notable texts include J. J. Sakurai's "Modern Quantum Mechanics," Ballentine's "Quantum Mechanics: A Modern Development," and Steven Weinberg's latest work, which are suggested for deeper understanding and advanced studies.

PREREQUISITES
  • Intermediate understanding of classical mechanics (Taylor and Morin)
  • Basic knowledge of linear algebra
  • Familiarity with electromagnetic theory (Griffiths' "Introduction to Electromagnetism")
  • Experience with mathematical formalism in physics
NEXT STEPS
  • Research J. J. Sakurai's "Modern Quantum Mechanics" for a comprehensive introduction
  • Explore Ballentine's "Quantum Mechanics: A Modern Development" for advanced concepts
  • Study Steven Weinberg's latest textbook for contemporary QM insights
  • Review Axler's "Linear Algebra Done Right" to strengthen mathematical foundations
USEFUL FOR

Students and self-learners of Quantum Mechanics, educators seeking textbook recommendations, and anyone looking to deepen their understanding of quantum theory through various perspectives.

  • #31
WannabeNewton said:
It's in the extended edition DVD; it doesn't show up in the regular version of the movie. Have fun with Shankar!

I intend to :cool:
 
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  • #32
I'm going to admit my age on this one, but here are some texts that I really like, but I'll warn you, they are all out of print:

McGervey, more modern physics that QM, but never the less a decent text.
Slater, Quantum Theory of Matter, every time I read that book I learn something else.
Schiff, another I one am not seeing mentioned.

Now, these texts are not filled with bra-ket notation, but I didn't learn that until late in my graduate career.
 
  • #33
Well, I also like the older texts, e.g., Pauli's famous review on wave mechanics, Sommerfeld's "Atombau und Spektrallinien", Landau/Lifgarbagez Vol. 3 and so on. However, I'd not recommend to learn quantum mechanics from a text that overemphasizes wave mechanics and then within wave mechanics the time-independent Schrödinger equation. The abstract formalism is more appropriate to understand the structure of quantum theory and doesn't overemphasize the position representation and the wave aspects. In my experience, many students come to the wrong conclusion that only energy eigenstates have some physical meaning. Also scattering theory is often taught in the time-independent scheme from the very beginning, although it's much better to start from a time-dependent approach, using proper wave packets as incoming states rather than plane waves, which are not even states in the strict sense at all.

A lot of confusion can be avoided by starting with the Hilbert-space structure. However, of course, you must start with some intuitive picture, why one has to use this abstract formalism. I think, Sakurai does this in a very nice way.
 

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