- #1

- 65

- 39

I would like to read about the Lagrangian of a classical (non-quantum), real, scalar, relativistic field and how it is derived. What is the best book for that purpose?

Best regards,

Sten Edebäck

You are using an out of date browser. It may not display this or other websites correctly.

You should upgrade or use an alternative browser.

You should upgrade or use an alternative browser.

- I
- Thread starter StenEdeback
- Start date

In summary, the Lagrangian of a classical (non-quantum), real, scalar, relativistic field is derived from symmetry principles. It can be found using a book by Goldstein or Greiner.

- #1

- 65

- 39

I would like to read about the Lagrangian of a classical (non-quantum), real, scalar, relativistic field and how it is derived. What is the best book for that purpose?

Best regards,

Sten Edebäck

Physics news on Phys.org

- #2

- 20,267

- 10,938

- #3

- 65

- 39

Well, I am still curious about the formula in the attached file. It is not the same as the Lagrangian that I am used to. My question is really: "How do you arrive at the Lagrangian formula in the attached file? And how do you prove that it is useful, that is describes a physical system?"

- #4

- 20,267

- 10,938

It seems to be the standard Lagrangian for a scalar field. What Lagrangian are you used to?StenEdeback said:It is not the same as the Lagrangian that I am used to.

- #5

Science Advisor

Homework Helper

Gold Member

2022 Award

- 6,735

- 2,427

You can use symmetry principles to restrict your lagrangian

- #6

- 65

- 39

- #7

Science Advisor

Homework Helper

Gold Member

2022 Award

- 6,735

- 2,427

And then you realize that in order to study this chapter, you need to read many more chapters in that book.

And so on :)

Chapter 2 in Greiners "Field quantization"

Chapter 1 - Tongs qft lecture notes https://www.damtp.cam.ac.uk/user/tong/qft.html

- #8

- 65

- 39

Thank you! I will have plenty to read. :)

There are several books that can provide a comprehensive understanding of Lagrangian of classical, scalar, relativistic field. Some popular options include "Classical Field Theory" by Davison E. Soper, "The Variational Principles of Mechanics" by Cornelius Lanczos, and "Theoretical Physics" by Joos, Born, and Heisenberg.

Some key concepts to understand in Lagrangian of classical, scalar, relativistic field include the Lagrangian density, Euler-Lagrange equations, and the action principle. It is also important to have a strong understanding of classical mechanics and special relativity.

Lagrangian of classical, scalar, relativistic field is an extension of Lagrangian mechanics, which deals with systems of particles. Lagrangian of classical, scalar, relativistic field deals with fields, which are continuous functions in space and time.

Yes, Lagrangian of classical, scalar, relativistic field has many applications in theoretical physics, specifically in the study of fundamental particles and their interactions. It is also used in the development of quantum field theories and in the study of cosmology.

The level of difficulty in learning Lagrangian of classical, scalar, relativistic field may vary depending on an individual's background in mathematics and physics. While it may be challenging, with dedication and a strong foundation in classical mechanics and special relativity, it can be understood and applied effectively.

Share:

- Replies
- 25

- Views
- 630

- Replies
- 7

- Views
- 418

- Replies
- 1

- Views
- 577

- Replies
- 2

- Views
- 579

- Replies
- 3

- Views
- 409

- Replies
- 2

- Views
- 49

- Replies
- 11

- Views
- 531

- Replies
- 3

- Views
- 163

- Replies
- 24

- Views
- 651

- Replies
- 4

- Views
- 527