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Is spin torsion interaction in the Einstein-Cartan theory?

 
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Feb8-06, 06:00 AM   #1
Max
 

Is spin torsion interaction in the Einstein-Cartan theory?


According to the Einstein-Cartan theory, there is torsion in addition
to curvature in the metric. There is an interaction between spin and
torsion. This effect is supposedly too weak to be verified
experimentally.

However, as we know, spin symmetry is spontaneously broken in
ferromagnetism, and all spin is pointed to the same direction.

My question is:
Can spin torsion interaction experimentally detectable in a strongly
ferromagnetic system?

Max

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