user avatar
user avatar
user avatar
Brightsun
  • Member for 8 years, 7 months
  • Last seen more than a week ago
  • Stockholm, Sverige
10 votes
0 answers
484 views

Special conformal transformations and image charges

5 votes
1 answer
1k views

Transformation of the scalar field under Lorentz Boost [closed]

5 votes
1 answer
396 views

Inferring that $\Gamma^{\mu}_{\alpha\beta}$ must be the Levi-Civita connection for $g_{\mu\nu}$ from the Einstein-Hilbert action

3 votes
0 answers
59 views

Linearized variation of $\sqrt{-g}(\nabla^\mu \xi^\nu - \nabla^\nu \xi^\mu)$

2 votes
1 answer
271 views

Dirac Current Spectral Representation

1 vote
1 answer
266 views

Problem 1 Chapter 11 Wald

1 vote
1 answer
967 views

Ladder operators evolution for fermions

1 vote
0 answers
90 views

Quantum oscillator, position mean value problem

1 vote
2 answers
171 views

Magnons contribution to spontaneous magnetization