1. For this activity, the instructor claims:

The oven is the superposition of the outer product: $\; \; \frac{1}{2} \; \vert +\rangle\langle+\vert \; + \; \frac{1}{2} \; \vert- \rangle\langle -\vert$.

  1. The students must then determine if the instructor's claim is true, and why or why not, by using the density matrix to calculate the probability of finding a sample coming out of the Stern-Gerlach oven in either the spin up or spin down state with x, y, or z orientation.

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