How would one measure magnetic vector potential?

AI Thread Summary
Magnetic vector potential is a theoretical concept used in physics to simplify calculations, yet it cannot be directly measured. The Aharonov-Bohm effect demonstrates that electrons can be influenced by a non-zero vector potential even in regions with zero magnetic field, and this phenomenon has been experimentally verified. The discussion highlights the confusion surrounding the measurement of vector potential and the need for clarity in communication. Participants express a desire for more information on the topic and its implications in quantum theory. Overall, the conversation emphasizes the intersection of theory and experimental evidence in understanding magnetic vector potential.
pinestone
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How would one measure magnetic vector potential? I know there is a formula, but is there an experiment that proves it?
 
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Like energy and momentum, verctor potential doesn't really exist, as it cannot be directly measured. It's a term physicists have invented to make the calculations easier.
 
pinestone said:
How would one measure magnetic vector potential? I know there is a formula, but is there an experiment that proves it?

Your title for this thread is horrible. How could anyone know to what you were referring?!

Quantum theory predicts that elecrons moving through space where the magetic field is zero, but where the vector potential is non-zero, can be influenced. The effect is called the Aharonov-Bohm effect, and it has been seen experimentally.

Regards,
George
 
George Jones said:
Your title for this thread is horrible. How could anyone know to what you were referring?!...

Regards,
George
Sorry about that. Well, I'm glad that you know what I ment. I didn't realize this was a quantum event, or I wouldn't have posted here. Should this topic be moved? Anyway, is there someplace I can look to find out more on mvp?
 
George Jones said:
Quantum theory predicts that elecrons moving through space where the magetic field is zero, but where the vector potential is non-zero, can be influenced. The effect is called the Aharonov-Bohm effect, and it has been seen experimentally.

Regards,
George
Thank you so much- your comment has led me to the solution to my problem !
 
Thread 'Motional EMF in Faraday disc, co-rotating magnet axial mean flux'

Thread 'Motional EMF in Faraday disc, co-rotating magnet axial mean flux'

So here is the motional EMF formula. Now I understand the standard Faraday paradox that an axis symmetric field source (like a speaker motor ring magnet) has a magnetic field that is frame invariant under rotation around axis of symmetry. The field is static whether you rotate the magnet or not. So far so good. What puzzles me is this , there is a term average magnetic flux or "azimuthal mean" , this term describes the average magnetic field through the area swept by the rotating Faraday...
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