Question related to completeness relation for photons

Click For Summary
SUMMARY

The discussion centers on the completeness relation for photons, specifically addressing the notation q^ and its significance in quantum field theory. The participants reference the textbook "Quarks and Leptons: An Introductory Course in Modern Particle Physics" by Halzen and Martin for context. The exercise involves calculating the completeness relation using the definition of the polarization vector ελ and applying a brute force method for resolution.

PREREQUISITES
  • Understanding of quantum field theory concepts
  • Familiarity with polarization vectors in particle physics
  • Knowledge of the completeness relation in quantum mechanics
  • Experience with mathematical calculations in particle physics
NEXT STEPS
  • Study the completeness relation for various particle states
  • Learn about polarization vectors and their applications in quantum mechanics
  • Review exercises from "Quarks and Leptons: An Introductory Course in Modern Particle Physics"
  • Explore advanced topics in quantum field theory, such as gauge invariance
USEFUL FOR

Students and researchers in theoretical physics, particularly those focusing on quantum field theory and particle physics, will benefit from this discussion.

Dhmht_Kr
Messages
4
Reaction score
0
Homework Statement
Question is posted below.
Relevant Equations
completeness relation
Hi
Would you explain to me what is the q^ and how they are related to completeness.How can i solve this exercise?It is from "Quarks and leptons An Introductory course in Modern Particle Physics" of Halzen and Alan D.Martin.Also, can you point me to a useful bibliography?

1684414317793.png
 
Physics news on Phys.org
Just write down the definition of the ##\epsilon_{\lambda}## and do the calculation by "brute force" (it's not too difficult).
 
Reply
  • Like
Likes   Reactions: malawi_glenn

Similar threads

Undergrad Are All Photons Truly Virtual?
  • · Replies 6 ·
Replies
6
Views
2K
Graduate The Symmetry of Antiparticle Isospin Doublets in Particle Physics
  • · Replies 3 ·
Replies
3
Views
3K
Other Can I (with a math major) do a masters in theoretical physics?
  • · Replies 16 ·
Replies
16
Views
2K
Undergrad Current theory of composite quarks and leptons
  • · Replies 6 ·
Replies
6
Views
3K
Graduate Feynman diagrams from Quarks and Leptons Halzen and Martin?
  • · Replies 3 ·
Replies
3
Views
3K
Undergrad Are fields' reality only a relative one?
  • · Replies 1 ·
Replies
1
Views
467
High School Are real theories undiscoverable from effective field theories?
  • · Replies 4 ·
Replies
4
Views
3K
Book recommendation after Sakurai Modern Quantum Physics
  • · Replies 3 ·
Replies
3
Views
752
Graduate Is delayed choice remote entanglement of photons derived from TDSE?
  • · Replies 58 ·
2
Replies
58
Views
5K
Schutz GR Book, Question about World line.
  • · Replies 2 ·
Replies
2
Views
2K