How do electrons couple to gauge field?

In summary, the gauge field is different from the vector potential. A gauge transformation in QM involves both the vector potential and the charged particle.
  • #36
Polyrhythmic said:
I understand that. Apparently we were both confused with what the other one meant! ;)

Actually, my comments started as a reply to OP's https://www.physicsforums.com/showpost.php?p=3491614&postcount=25" where he mentions "Proca Lagrangian". I don't know what your intention was or whatever it was that you had in mind.
 
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  • #37
Dickfore said:
Actually, my comments started as a reply to OP's https://www.physicsforums.com/showpost.php?p=3491614&postcount=25" where he mentions "Proca Lagrangian". I don't know what your intention was or whatever it was that you had in mind.

I see, now everything is clear to me, I didn't realize you were talking about Proca theory. Sorry for the confusion!
 
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