In this problem, you will step through how the EPR experiment would change with

Question

In this problem, you will step through how the EPR experiment would change with a different entangled state for the electron pairs. Suppose we had a source that prepared pairs of electrons in the following state: |psi) = 1/Squareroot 2(|+ z)_A |+ z)_B + |- z)_A |- z)_B and sends them toward two different SG boxes, each of which can switch between the three orientations 1, 2, and 3 described on the EPR reading. How do you know that this is an entangled state? Describe the type of correlation between the spins. If both boxes are in the same orientation, what is the probability of electrons A and B coming out of different outputs (i.e. one comes out of + and the other out of -)? Explain your answer briefly. Suppose one box is in orientation 1 and the other is in a different orientation. What is the probability of the two boxes giving different results? Explain your answer briefly.

Explanation / Answer

Here the given state cannot be separated into two individual states. So the two particles are entangled.

The two particles always have same spin so if the two detectors are aligned in the same direction it is definite that both the particles will come through same output with 100% probability.

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