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danja347
Dec9-04, 12:40 PM
Can anyone give me some hints? I need to prove that all spinors to a spin-1/2 particle are eigenvectors to \hat S^2!

/Daniel

dextercioby
Dec9-04, 12:47 PM
Can anyone give me some hints? I need to prove that all spinors to a spin-1/2 particle are eigenvectors to \hat S^2!

/Daniel

What is spin???It's a weird form of angular momentum.
Use the theory of angular momentum to show that S_{z} and S^{2} commute then apply a monstruously important theorem of functional analysis to find your result.

toblu
Dec9-04, 01:34 PM
What is spin???It's a weird form of angular momentum.
Use the theory of angular momentum to show that S_{z} and S^{2} commute then apply a monstruously important theorem of functional analysis to find your result.

Thatīs right. Sometimes a problem is very easy. Good Luck Daniel!