Question

Should I spend my $600 on Shankar, Landau Lifshitz, Sakurai quantum mechanics, or jump to learn QFT (if so, which one)? I have Messiah already. I have a BS in Physics, albeit as one of the dumber students :). We had Griffiths in school.

Answer 1

Deciding how to spend your $600 on quantum mechanics resources depends on your personal interests and goals. Here are some considerations to help you make an informed choice:

1. Shankar's "Principles of Quantum Mechanics": This textbook is highly regarded for its thoroughness and clarity. It covers a wide range of topics and provides a solid foundation in quantum mechanics. If you prefer a comprehensive and rigorous approach, Shankar's book is an excellent choice.

2. Landau and Lifshitz's "Quantum Mechanics: Non-relativistic Theory": This classic textbook is known for its mathematical rigor and depth. It is suitable for advanced study and provides a more formal and abstract treatment of quantum mechanics. If you enjoy mathematical rigor and want to delve deeper into the subject, Landau and Lifshitz's book can be a valuable resource.

3. Sakurai's "Modern Quantum Mechanics": This textbook is highly regarded for its intuitive explanations and its emphasis on conceptual understanding. It strikes a balance between mathematical rigor and physical insight. If you prefer a more intuitive and conceptual approach, Sakurai's book can be an excellent choice.

4. Learning Quantum Field Theory (QFT): If you're interested in advancing your understanding of quantum mechanics and exploring the realm of particle physics, learning QFT can be a rewarding next step. However, it's important to note that QFT is a significantly more advanced and mathematically involved subject compared to non-relativistic quantum mechanics. Before diving into QFT, make sure you have a solid understanding of quantum mechanics foundations.

Considering you already have a background in physics and own Messiah's book, you can start by revisiting the concepts covered in Griffiths' "Introduction to Quantum Mechanics" to reinforce your understanding. After that, you can explore other textbooks like Shankar, Landau and Lifshitz, or Sakurai based on your preferences.

Ultimately, it's essential to find resources that resonate with your learning style and goals. You can also consider consulting with professors or professionals in the field for their recommendations based on your specific interests and aspirations.