Anyone know how to begin learning QFT?

  • Studying
  • Thread starter korea_mania
  • Start date
  • #1
I am currently a final year undergrad trying to understand Quantum field theory. However, the correct pathway to reach QFT is not so obvious.

Topics like many-body quantum theory, statistical mechanics, relativistic quantum mechanics keep showing up. Some field theory books introduce QFT as the correct framework to combine special relativity and quantum mechanics. Some particle physics books introduce QED and QCD together with the notion of gauge theories and lie group. Some statistical mechanics book will introduce the method of second quantization and renormalization to deal with the interacting system.

1. If QFT is indeed a relativistic version of quantum theory, how about relativistic quantum mechanics such as the Dirac equation and Klein-Gordan equation?
2. If QFT has to deal with a large number of degrees of freedom, is statistical mechanics and statistical field theory required before touching any QFT?
3. If QFT is treating all kind of particles as some kind of excitation of the corresponding fields, is it simply the application of the modern quantum theory on all the other quantum systems?

Can anyone just give me a clear definition of ''many-body quantum theory'', ''relativistic quantum mechanics'', ''quantum field theory''? And also, where should I begin?
 

Answers and Replies

  • #2
Vanadium 50
Staff Emeritus
Science Advisor
Education Advisor
26,439
9,959
I think you should begin by learning undergrad physics. As you point out, QFT builds upon a broad foundation. You want to have that foundation rock solid.
 

Related Threads on Anyone know how to begin learning QFT?

Replies
4
Views
1K
Replies
1
Views
684
Replies
5
Views
5K
Replies
9
Views
800
  • Last Post
Replies
5
Views
11K
Replies
8
Views
573
Replies
25
Views
4K
Replies
6
Views
1K
Replies
1
Views
2K
Top