Large N Expansion: Getting Started

  • Thread starter Thread starter metamathphys
  • Start date Start date
  • Tags Tags
    Expansion
Click For Summary
The discussion focuses on the large N expansion method in SU(N) gauge theories, highlighting the need for accessible resources for beginners. Participants recommend "QFT in a Nutshell" by Zee for a brief introduction, while also suggesting Manohar's notes as a more detailed resource. Manohar's work covers both general concepts and specific applications to QCD physics. The conversation emphasizes the challenge of finding comprehensive yet understandable materials on the topic. Overall, these resources are seen as valuable starting points for understanding large N expansion.
metamathphys
Messages
9
Reaction score
0
Hello.

Apparently for SU(N) gauge theories there is a perturvative approach call "large N expansion". I need a working knowledge of this method but I can not find it in any textbook only in research papers that are rather for the expert. Someone has any suggestion where should I get started?
Can it be found in Weinberg's?


Thank you in advance
 
Physics news on Phys.org
Zee, QFT in a Nutshell, gives a short (3 pages) introduction to the idea.
 
I always liked some notes by Manohar http://arxiv.org/abs/hep-ph/9802419. The first several sections are generic, discussing both vector and matrix large N, while the later sections get into more detailed QCD physics.
 
Thank you very much. I already knew about Zee's but is too short I will give now a try to Manohar.
 
Time reversal invariant Hamiltonians must satisfy ##[H,\Theta]=0## where ##\Theta## is time reversal operator. However, in some texts (for example see Many-body Quantum Theory in Condensed Matter Physics an introduction, HENRIK BRUUS and KARSTEN FLENSBERG, Corrected version: 14 January 2016, section 7.1.4) the time reversal invariant condition is introduced as ##H=H^*##. How these two conditions are identical?

Similar threads

  • · Replies 3 ·
Replies
3
Views
1K
  • · Replies 23 ·
Replies
23
Views
3K
  • · Replies 24 ·
Replies
24
Views
2K
  • · Replies 11 ·
Replies
11
Views
3K
  • · Replies 2 ·
Replies
2
Views
3K
  • · Replies 1 ·
Replies
1
Views
2K
  • · Replies 6 ·
Replies
6
Views
2K
  • · Replies 2 ·
Replies
2
Views
2K
  • · Replies 2 ·
Replies
2
Views
3K
  • · Replies 22 ·
Replies
22
Views
5K