Question: 2. Radial spin component; polarization corrclations. (5+5 points) (a) Construct the matrix representation for the spin-1/2 radial component Sr=crS. Find its cigenvalues and normalized cigenspinors.

2. Radial spin component; polarization

2. Radial spin component; polarization corrclations. (5+5 points) (a) Construct the matrix representation for the spin-1/2 radial component Sr=crS. Find its cigenvalues and normalized cigenspinors. (b) (*) Consider two spin-1/2 particles in an "entangled" singlet state 00=()/2. Compute the polarization correlation S1aS2 of the projections S1a=aS1 and S2b=bS2 as function of the angle between the unit vectors a and b

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