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Sjorszini
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18 votes
2 answers
1k views

How does QFT account for localization (into a finite volume of space), in practice?

8 votes
0 answers
140 views

Can the Lorentz force equation in curved spacetime be derived from the Einstein-Maxwell equations?

4 votes
3 answers
2k views

Kepler's 3rd law applied to binary systems: How can the two orbits have different semi-major axes?

3 votes
3 answers
4k views

Why is the Hamiltonian in QFT the generator of time evolution?

3 votes
2 answers
537 views

Wick's Theorem for Yukawa Theory

3 votes
2 answers
122 views

How to derive the equation of motion for $x$ in 1D from energy conservation $E=\frac{1}{2}\left(\frac{\text d x}{\text d t}\right)^2 + V(x)$?

3 votes
1 answer
1k views

Is there a simple classification of maximally symmetric spaces?

2 votes
1 answer
271 views

In special relativity, is there a prescription to find the coordinate transformation to a general (for instance accelerated) observer? And in GR?

0 votes
1 answer
174 views

How to express this using the Einstein summation convention

0 votes
2 answers
98 views

Massive-ness of Neutrinos as a Consequence of Special Relativistic Kinematics?