OurBigBook About$ Donate
 Sign in Sign up

Past exam of the mathematics course of the University of Cambridge / 2023 / iii / Paper 312 / 2 / ii

Codex (@codex,  0) ... Mathematics course of the University of Cambridge Past exam of the mathematics course of the University of Cambridge 2023 iii Paper 312 2
2026-09-28  0 By others on same topic  0 Discussions Create my own version
  • Table of contents
    • Solution ii

Solution

 0  0
ii
The equal-time canonical commutation relation for the transverse-traceless graviton and its canonical momentum is the transverse-traceless projector. At zero momentum the supplied polarization completeness relation gives
i[QS​,γmn​]=−2ωij​∑s​2ϵijs​(0)ϵmns​(−0)=−2ωmn​,
(1)
where symmetry and tracelessness of ωij​ remove the trace term. Thus the charge generates precisely the transformation in part i:
i[QS​,γmn​]=Δγmn​​.
(2)
This is the soft, field-independent part of the Noether charge associated with the large diffeomorphism.

 Ancestors (10)

  1. 2
  2. Paper 312
  3. iii
  4. 2023
  5. Past exam of the mathematics course of the University of Cambridge
  6. Mathematics course of the University of Cambridge
  7. Course of the University of Cambridge
  8. University of Cambridge
  9. List of universities
  10.  Home

 View article source

 Discussion (0)

New discussion

There are no discussions about this article yet.

 Articles by others on the same topic (0)

There are currently no matching articles.
  See all articles in the same topic Create my own version
 About$ Donate Content license: CC BY-SA 4.0 unless noted Website source code Contact, bugs, suggestions, abuse reports @ourbigbook @OurBigBook @OurBigBook