What Do the Commutators in Peskin and Schroeder's Equation (2.30) Represent?

In summary, "Peskin, Schroeder (2.30)" is a chapter in the book "An Introduction to Quantum Field Theory" by Michael Peskin and Daniel Schroeder. Both authors are theoretical physicists and the book is a widely-used textbook for graduate-level courses in quantum field theory. Quantum field theory is a theoretical framework used to describe the behavior of subatomic particles. The chapter "Peskin, Schroeder (2.30)" covers perturbation theory, which is frequently referenced in discussions about quantum field theory. While the book can be used for self-study, it is primarily used as a textbook in a classroom setting due to its advanced material.
  • #1
Ratzinger
291
0
Can someone tell me what the two commutators in (2.30) stand for? It has to be Dirac delta functions, but which one exactly?

thank you
 
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  • #2
Acording to (2.29) the first one should be - [itex]\delta[/itex](p' + p) and the second [itex]\delta[/itex](p + p'). After substracting both the negative sign as well as the factor 2 cancel in (2.30). I guess you should then make use of:

[tex] \int \delta(p + p^{\prime}) F(p^{\prime}) dp^{\prime} = F(- p) [/tex]

to obtain the final result in (2.30).
 
  • #3
Thanks hellfire
 

1. What is "Peskin, Schroeder (2.30)"?

"Peskin, Schroeder (2.30)" refers to a specific chapter (chapter 2, section 30) in the book "An Introduction to Quantum Field Theory" by Michael Peskin and Daniel Schroeder. This book is a widely-used and highly regarded textbook for graduate-level courses in quantum field theory.

2. Who are Michael Peskin and Daniel Schroeder?

Michael Peskin and Daniel Schroeder are both theoretical physicists who co-authored the book "An Introduction to Quantum Field Theory." Peskin is a professor at Stanford University and Schroeder is a professor at Weber State University.

3. What is quantum field theory?

Quantum field theory is a theoretical framework used to describe the dynamics of subatomic particles and their interactions. It combines elements of quantum mechanics and special relativity to model the behavior of particles as fields that span all of space and time.

4. Why is "Peskin, Schroeder (2.30)" frequently referenced in discussions about quantum field theory?

Chapter 2, section 30 of "An Introduction to Quantum Field Theory" covers the basics of perturbation theory, which is a powerful tool used in many areas of physics, including quantum field theory. This section is often referenced because it provides a clear and thorough explanation of perturbation theory and its applications in quantum field theory.

5. Is "Peskin, Schroeder (2.30)" suitable for self-study or is it better used as a textbook in a classroom setting?

While "Peskin, Schroeder (2.30)" can be used for self-study, it is primarily designed as a textbook for graduate-level courses in quantum field theory. The material is quite advanced and may be difficult to understand without the guidance of a professor or instructor. However, many students have successfully used this book for self-study with the help of online resources and study groups.

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