How would one measure magnetic vector potential?

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Discussion Overview

The discussion centers around the measurement of magnetic vector potential, exploring both theoretical and experimental aspects. Participants question the existence of vector potential and its implications in quantum mechanics, particularly in relation to the Aharonov-Bohm effect.

Discussion Character

  • Exploratory
  • Debate/contested
  • Conceptual clarification

Main Points Raised

  • One participant asks how magnetic vector potential can be measured and whether there is an experiment that proves its existence.
  • Another participant argues that vector potential does not exist in a measurable sense, suggesting it is a construct used for simplifying calculations.
  • A participant introduces the Aharonov-Bohm effect, stating that it demonstrates how electrons can be influenced by vector potential even in regions where the magnetic field is zero, citing experimental evidence.
  • There is a concern about the clarity of the thread title, with a suggestion that it could mislead readers regarding the topic being discussed.
  • A participant expresses gratitude for the information provided, indicating it has helped them find a solution to their problem.

Areas of Agreement / Disagreement

Participants express differing views on the existence and measurability of magnetic vector potential. While some acknowledge its theoretical significance and experimental implications, others contest its existence as a physical entity.

Contextual Notes

There is a lack of consensus on the definition and implications of magnetic vector potential, as well as the conditions under which it can be considered relevant in experiments.

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 !
 

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