Physics
K. Pull's user avatar
K. Pull's user avatar
K. Pull's user avatar
K. Pull
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19
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All Questions Answers
Score Newest
question
7
Why does the Minkowski matrix appear in the free particle action?
Oct 31
question
2
What kind of coordinate change is needed to make gravity disappear?
Oct 1
question
2
Does the energy-momentum tensor inside Einstein's field equation include gravitational stress-energy?
Oct 3
question
2
Why is the density in GR equal to $\rho_0\dfrac{dx^0}{ds}\sqrt{-g}$?
Oct 29
question
1
Is it really necessary for a Hamiltonian density to vary with a total derivative under symmetries?
Dec 8, 2021
question
1
How do 4-vectors change under an "accelerated" Lorentz transformation?
Sep 27
question
1
Why does general relativity assume that the torsion is equal to zero?
Oct 2
question
1
Does a metric theory of gravity plus torsion violate the equivalence principle?
Oct 3
question
1
Is there an action principle for the dynamics of a relativistic fluid?
Oct 8
answer
1
Difference between classical fields and wavefunctions? Relation between QM and Classical field theory
Sep 21

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