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Sep
21
revised A good example of a nonlinear symplectomorphism?
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Sep
21
answered A good example of a nonlinear symplectomorphism?
Sep
14
answered Gentle introduction to twistors
Sep
11
answered Complete set of observables in classical mechanics
Sep
6
comment Aharonov-Bohm Effect and Flux Quantization in superconductors
Yes, this is exactly the definition of multivaluedness. Take for example the "funtion" $e^{\frac{i\theta}{2}}$ on the circle, it is multiple valued since it takes two different values at $\theta = 2\pi$ and $\theta = 4\pi$ which are the same physical point. Its modulus is a true function on the circle. Of course, the modulous operation cancels only a single global phase and if the wave function is a superposition, the relative phases will still exist. This is the reason why the wave function "feels" the topology in the Aharonov-Bohm effect.
Sep
5
comment classical dynamics on group manifold SU(2)
I added an update answering the question about the hydrogen atom
Sep
5
revised classical dynamics on group manifold SU(2)
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Sep
5
answered Improved energy-momentum tensor
Sep
5
revised classical dynamics on group manifold SU(2)
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Sep
5
answered classical dynamics on group manifold SU(2)
Sep
3
answered Is there a strong force analog to magnetic fields?
Sep
2
revised Kepler problem: flows generated by constants of motion
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Sep
2
answered Kepler problem: flows generated by constants of motion
Sep
2
revised Darwin term and Zitterbewegung
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Sep
1
revised Darwin term and Zitterbewegung
added 30 characters in body
Sep
1
answered Darwin term and Zitterbewegung
Aug
30
answered Ideal 2D Unicycle Kinematics
Aug
27
answered polarization and frequency of a single photon
Aug
27
answered Aharonov-Bohm Effect and Flux Quantization in superconductors
Aug
19
answered what is the relationship between these two sorts of anomalies?