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From: Ron Baker on 5 Jul 2010 13:13

Looking at:
http://en.wikipedia.org/wiki/Bell's_theorem

I follow down to a little past half where it has:

A(a) = S_z (x) I

(I use '(x)' for the tensor product operation symbol.)

What does that mean? How did they get to that?
I assume 'I' is the identity operator. Is the purpose of
this to generate a tensor spin-z operator from the
non-tensor operator?
But I expected A(a) to be a probability or expectation
(i.e. scalar) and not an operator.


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-Ron Baker
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