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Apr
25
awarded  Popular Question
Apr
20
comment Simple real life applications of Euler-Lagrange equations of motion
@Mike: The complexity should be like the double pendulum or the moving plane or more simple.
Apr
19
asked Simple real life applications of Euler-Lagrange equations of motion
Apr
13
comment Why not measure the velocity of a quantum particle by $\frac{\Delta \vec{x}}{\Delta t}$
@TomášBrauner Isn't "not normalizable" just a problem of the formalism? Just use a rigged hilbert space...
Apr
12
comment Why not measure the velocity of a quantum particle by $\frac{\Delta \vec{x}}{\Delta t}$
@Javier I don't want to take the limit $t_2 \to t_1$, sure this would be even better, but the question is just about the average velocity of a small intervall. Do you have a reference to Landau (which page?)
Apr
12
comment Why not measure the velocity of a quantum particle by $\frac{\Delta \vec{x}}{\Delta t}$
@TomášBrauner But if it was in a position eigenstate it should work?
Apr
12
comment Why not measure the velocity of a quantum particle by $\frac{\Delta \vec{x}}{\Delta t}$
@Asher: Yes I am familiar with the UP. But how does this answer my question?
Apr
11
asked Why not measure the velocity of a quantum particle by $\frac{\Delta \vec{x}}{\Delta t}$
Mar
28
awarded  Notable Question
Mar
28
awarded  Nice Question
Mar
18
revised Is the trajectory of a quantum particle a well defined concept and how does this depend on the interpretation of quantum mechanics?
added 349 characters in body
Mar
17
asked Is the trajectory of a quantum particle a well defined concept and how does this depend on the interpretation of quantum mechanics?
Mar
15
asked Physics of the capacitance of an electrolytic capacitor
Mar
14
accepted Distinguish statistical uncertaincy from noise disturbance relation in slit gedankenexperiment
Mar
7
asked Distinguish statistical uncertaincy from noise disturbance relation in slit gedankenexperiment
Feb
19
revised Why does one use different materials for cathode and anode in the photoelectric effect experiment
edited tags
Feb
19
asked Why does one use different materials for cathode and anode in the photoelectric effect experiment
Feb
1
revised How can one meaningfully say that one field generates the other in an EM-wave?
edited tags
Jan
11
comment How can one meaningfully say that one field generates the other in an EM-wave?
@Anna, thanks for your edit. This gives an argument, that there is no causal relation.
Jan
11
comment How can one meaningfully say that one field generates the other in an EM-wave?
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