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Physics
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Mikkel Rev's user avatar
Mikkel Rev's user avatar
Mikkel Rev
  • Member for 8 years, 8 months
  • Last seen more than a month ago
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22
How can the Feynman rules be read off the Lagrangian?
Nov 18, 2016
13
General relativity: Why don't these two differentials commute?
Apr 5, 2017
11
QFT: Propagators are the inverse of the quadratic terms in $\mathcal{L}$?
Nov 8, 2017
10
General relativity: For massless particles, is the momentum and velocity 4-vectors equal?
Apr 13, 2017
7
QFT: How would you explain to a mathematician what "transforms as" means?
Sep 14, 2016
7
General relativity: How is the 4-velocity and momentum defined in GR?
Apr 12, 2017
6
What is the definition of invariance under Lorentz transformation?
Aug 28, 2016
6
How do annihilation and creation operators act on fermions?
Oct 27, 2016
5
Proof that 1d lattice displacement by phonons is given $u_{n\pm 1}(t) = A_ke^{i\omega_k t} e^{i knd}e^{\pm i k d}$
Feb 20, 2016
5
Rewrite position-space Feynman diagram in momentum-space
Oct 6, 2016
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17
What is the difference between a "statistical experiment" and a "statistical model"?
16
Where is the wild use of the Dirac delta function in physics justfied?
14
Matlab: link to variable, not variable value
10
Can a printer driver access internet if it wants?
9
Is a dense set always infinite?