Spin particles not in a magnetic field

AI Thread Summary
Determining the magnetic moment of spin particles in a zero magnetic field (\vec{B} = 0) presents challenges, as traditional methods may not yield conclusive results. The Aharonov-Bohm effect suggests that it is possible to create a region where the magnetic field is absent, yet a vector potential exists, allowing for interference measurements. Additionally, accelerating the particles could enable the measurement of electric polarization, as moving magnetization can manifest as polarization. These methods provide potential avenues for investigating the properties of spin particles in a zero magnetic field. Overall, while direct measurement may be difficult, alternative approaches could offer insights into their magnetic moments.
denjay
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If spin particles are in \vec{B} = 0, then is it impossible to determine their magnetic moment at a given time given any investigative method?
 
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I think you could use something like Aharonov-Bohm: create a region where B is 0 but A is not and interfere. Alternatively, you could accelerate these particles and measure their electric polarization (a moving magnetization becomes a polarization)
 
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