Y2

(4) Consider a general two-particle spin state alup>|up> + blup>|down> + cldown>lup> + d |down>|down>. a. If you are told that whenever the spins are measured along 2, they are the same, what can you conclude about the coefficients? b. If you are additionally told that whenever the spins are measured along x, they are the same, what more can you conclude? c. What, if anything, can you determine about the correlations of the two spins if both are measured along y