# I need a hint!

1. Dec 9, 2004

### danja347

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

Last edited: Dec 9, 2004
2. Dec 9, 2004

### dextercioby

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.

3. Dec 9, 2004

### toblu

That´s right. Sometimes a problem is very easy. Good Luck Daniel!